help meeeeeee its geometry?

Question

1. Lines PL, AE, and RT are all parallel to each other. What is the length of segment LE?
http://takeexam.next.ecollege.com/ec/pub/K12Content/Courses/resources/swfs/media/Tenth_Grade/Math/Unit19338/Lesson74005/GMT_S2_U3_Q1_v3stem.gif
(Points : 5)
3

6

12

418


2. A phone company worker needs to know the height of a cell tower, so he decides to use a 4 m pole and shadows cast by the sun, as shown in the diagram. Both shadows end at point B. What is the height of the tower?
(Points : 5)
http://takeexam.next.ecollege.com/ec/pub/K12Content/Courses/resources/swfs/media/Tenth_Grade/Math/Unit19338/Lesson74005/GMT_S2_U3_Q2_rev.gif
30 m
32 m
36 m
40 m

3. What is the length of segment AD?
http://takeexam.next.ecollege.com/ec/pub/K12Content/Courses/resources/swfs/media/Tenth_Grade/Math/Unit19338/Lesson74005/HS_GMT_L3_S2_03_14_UT_ques3.gif
(Points : 5)
3

12

15

20


4. A pair of corresponding sides of two similar pentagons have lengths of 14 cm and 21 cm. What is the ratio of the areas of the two pentagons?
http://takeexam.next.ecollege.com/ec/pub/K12Content/Courses/resources/swfs/media/Tenth_Grade/Math/Unit19338/Lesson74005/HS_GMT_L2_S2_03_17_UT_Q4b.gif
(Points : 5)
Option A:

Option B:

Option C:

Option D:


5. If a dilation transforms pre-image AEB to create image ADC, which is the proper term for point A?
http://takeexam.next.ecollege.com/ec/pub/K12Content/Courses/resources/swfs/media/Tenth_Grade/Math/Unit19338/Lesson74005/HS_GMT_L3_S2_03_14_UT_ques5.gif
(Points : 5)
center of dilation

contraction point

pre-image point

scale factor


6. A pre-image segment with endpoints (1, 3) and (2, 2) is dilated to the image segment with endpoints (2, 6) and (4, 4). What is the scale factor for the dilation?
http://takeexam.next.ecollege.com/ec/pub/K12Content/Courses/resources/swfs/media/Tenth_Grade/Math/Unit19338/Lesson74005/HS_GMT_L2_S2_03_17_UT_Q6c.gif
(Points : 5)
4

3

2

51


7. The volumes of two similar solids are 20 cm3 and 2500 cm3. What is the ratio of the corresponding sides of the larger figure to the smaller figure?
(Points : 5)

5

7

16

25


8. On the coordinate plane, the origin is the center of a contraction with a scale factor of p. Which shows the coordinates of the image points for pre-image points (x, y)?
(Points : 5)
(p + x, p + y)

(x p, y p)

(px, py)

(p x, p y)


9. Two acute triangles are similar. Which of the following must the similar triangles have?
(Points : 5)
every pair of sides and angles congruent

at least one pair of congruent sides and one pair of congruent angles

congruent corresponding angles and proportional side lengths

a right angle and a hypotenuse


10. The vertices of a pre-image are located at points (3, 3), (0, 0), and (2, 1). If the image triangle has vertices with coordinates (9, 9), (0, 0), and (6, 3), what type of dilation is it?
(Points : 5)
expansion

contraction

reflection

rotation


11. The diagram shows a 76 m building with a flagpole outside. The shadows of the building and the flagpole end at point C. What is the height of the flagpole?

(Points : 5)
5.68 m

12 m

14.25 m

518 m


12. The side lengths of two different cubes are 36 cm and 45 cm. What is the ratio of the volume of the smaller to the volume of the larger (in simplest form)? Note: These cubes are not drawn to scale.
http://takeexam.next.ecollege.com/ec/pub/K12Content/Courses/resources/swfs/media/Tenth_Grade/Math/Unit19338/Lesson74005/HS_GMT_L3_S2_03_14_UT_ques11R.gif
(Points : 5)
Option A:

Option B:

Option C:

Option D:


13. Which of the following can be used to prove that the two triangles are similar?
http://takeexam.next.ecollege.com/ec/pub/K12Content/Courses/resources/swfs/media/Tenth_Grade/Math/Unit19338/Lesson74005/HS_GMT_L2_S2_03_17_ut13v.gif
(Points : 5)
SAA Similarity Theorem

SAS Similarity Theorem

SSA Similarity Postulate

ASA Similarity Postulate

Answer 1

Ummm the page has a problem

Answer 2

The pictures can't be viewed unless we are users of the same software... but some of them can be discussed without a picture...



1. Need Picture





2. Need Picture



3. Need Picture



4. A pair of corresponding sides of two similar pentagons have lengths of 14 cm and 21 cm. What is the ratio of the areas of the two pentagons?



The similar pentagons will have proportional sides in the ratio of 14/21 or 2/3

With areas, you are working with some variety of L*W so the areas will be proportional in the ratio of (2/3)^2 or 4/9





5. If a dilation transforms pre-image AEB to create image ADC, which is the proper term for point A?



center of dilation



6. A pre-image segment with endpoints (1, 3) and (2, 2) is dilated to the image segment with endpoints (2, 6) and (4, 4). What is the scale factor for the dilation?



The distance between the first two points is Sqrt 2

The distance between the 2nd two points is Sqrt 8=4*Sqrt 2



The scale factor is (4*Sqrt 2)/(Sqrt 2)=4



7. The volumes of two similar solids are 20 cm3 and 2500 cm3. What is the ratio of the corresponding sides of the larger figure to the smaller figure?

Just like the areas are related by squares, the volumes are related be cubes.



2500/20=125

the cube root of 125 = 5



8. On the coordinate plane, the origin is the center of a contraction with a scale factor of p. Which shows the coordinates of the image points for pre-image points (x, y)?



This one wouldn't be addition but the notation you typed looks odd (not sure what you mean by the spaces)

If you had some pre-image and multiplied it by 1/p (since it's a contraction) to get (x,y), if you multiply by the reciprocal of 1/p (or just p) you would get...



(px, py)



9. Two acute triangles are similar. Which of the following must the similar triangles have?



every pair of sides and angles congruent (that would make them congruent-not this one)



at least one pair of congruent sides and one pair of congruent angles (that would also make them congruent-not this one)



congruent corresponding angles and proportional side lengths (THIS ONE)



a right angle and a hypotenuse (they are acute triangles-not this one)





10. The vertices of a pre-image are located at points (3, 3), (0, 0), and (2, 1). If the image triangle has vertices with coordinates (9, 9), (0, 0), and (6, 3), what type of dilation is it?



expansion





11. Need Picture



12. The side lengths of two different cubes are 36 cm and 45 cm. What is the ratio of the volume of the smaller to the volume of the larger (in simplest form)? Note: These cubes are not drawn to scale.



The ratio of the sides are 36/45 or 4/5

The ratios of the volumes will be (4/5)^3=64/125





13. Which of the following can be used to prove that the two triangles are similar?



SAA Similarity Theorem (if you know 2 angles are congruent, then the third is also, the side doesn't matter AAA shows similarity)



SAS Similarity Theorem (if the sides are proportional-similar)



SSA Similarity Postulate (Ambiguous without more info)



ASA Similarity Postulate (again 2 angles gives you the third for free)

Answer 3

basically, the only thing that i can find in common with sacred geometry and alchemy is that they both deal with types of spirituality. Sacred geometry deals with the use of geometric patterns and shapes in the design and architecture of churches, temples, mosques or any place of spiritual gathering. These specific shapes mean certain things, depending on the religion or belief system. For example, the pentagram in Christianity refers to the five senses. In Catholicism, it can sometimes refer to the Devil, or the Evil One. Alchemy deals with the process of turning metals into gold, using chemicals and science. However, Alchemy is also a belief in finding the ultimate wisdom through chemistry. Therefore, alchemy is a spirituality all its own. All in all, the only thing that I can see in common between the two is that they both deal with a type, or types, of spirituality.

Answer 4

BOOOOOO MIKE BROWN. Your answrs ******* suck might aswell not even reply you dumb ******* idiot.

Answer 5

**** you billy you bonesmoker