Posted by **Emma** on Thursday, February 25, 2010 at 5:40pm.

Hi,

I don't have much time to turn this in.

I think I got all the questions right, but I just want to be sure. I would appreciate some feedback! Thank you!

1. What is the formula for calculating the length of the diagonal of a right rectangular prism on the basis of the prism�s length, width, and height? (Points: 5)

Option A: treqw

Option B: das4d5

Option C: zxz5

Option D: zxxZxxZxZ

2. Find the surface area of the triangular prism.

(two right triangles, a= 3cm, b=4 cm, the depth is 6 cm)

(Points: 5)

x 72 cm2

84 cm2

96 cm2

114 cm2

3. Find the volume of the triangular prism.

(same triangle as above)

(Points: 5)

x 36 cm3

48 cm3

72 cm3

84 cm3

5. What is the distance between (8, -3, 4) and (6, -4, 1)? (Points: 5)

x Option A: sqrt14

Option B: sqrt30

Option C:sqrt62

Option D: sqrt78

7. Which statement is true of every plane in three-dimensional space? (Points: 5)

Every plane must have three intercepts.

x A plane can have only one intercept.

Every plane must have at least two intercepts.

A plane can have no intercepts.

8. What is the total number of edges of an octagonal prism? (Points: 5)

8

10

16

x 24

10. The endpoints of a line segment are at the coordinates (-6, 3, 4) and (4, -1, 2). What is the midpoint of the segment? (Points: 5)

(-10, -2, 2)

(-5, -1, 1)

(-2, 2, 6)

x (-1, 1, 3)

please hurry!

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