Question

A rectangular pyramid and a rectangular prism have bases of the same dimensions as shown below. The surface area of the rectangular pyramid is 131 square inches. The height of the rectangular prism is the same as the slant height of the pyramid. What is the surface area of the rectangular prism?

Answer 1

http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/pool_Geom_3641_0700_Subtest_03_15/image0024e5fb4df.jpg

Answer 2

thought we did this yesterday...

Answer 3

Hopefully I have not already gone over this one.

Answer 4

Could we do it once more?

Answer 5

could you give me a step by step explanation this time?

Answer 6

we need to find the slant height of the pyrmid.... the surface area of the pyrmid is the area of all the4 triangles and the 7x5 rectangular base.

Answer 7

k

Answer 8

7 times 5=35

Answer 9

since the base has area 35, then the area of the 4 triangles is 131-35=96

Answer 10

131-35=96

Answer 11

k

Answer 12

then?

Answer 13

96 = (1/2)*5*h + (1/2)*7*h +(1/2)*5*h + (1/2)*7*h
96 = 5*h + 7*h
96 = 12h
8 = h

Answer 14

k..

Answer 15

four sides

Answer 16

two with the fives and two with the sevens.

Answer 17

comes out to be 5h+7h

Answer 18

96 divided by 12 is 8

Answer 19

the prism has 6 faces.... two 7x5, two 5x8, two 8x7

Answer 20

so the prism is... 262?

Answer 21

ty!!!!!!!