The bottom shape is a cube with base edges of 16 meters. The top shape is a right pyramid with a height of 15 meters. What is the surface area of this composite figure?

Question

anonymous · Answer

http://go.flvs.net/courses/1/flvs_57_3641_2a7b30381160098/ppg/respondus/pool_Geom_3641_0703_06/image0014e721780.gif

anonymous · Answer

.544 m2
		1,280 m2
		1,824 m2
		2,080 m2

mertsj · Answer

The five sides of the cube are 5 squares which are 16 by 16 so that is 5 (256) =1280

anonymous · Answer

thank u so much

mertsj · Answer

To get the top, we have to find the slant height of the pyramid which is the hypotenuse of a right triangle whose legs are 15 and 8.  So the slant height is 17.  So each of the 4 triangles has area 1/2(16)(17) which is 136 but there are 4 of them so that is 4 times 136 or 544.
Now we must add the 5 sides of the cube.  544+1280=1824 and that is the answer.

anonymous · Answer

ok i see now thank u for all the help and for making sure i saw it

mertsj · Answer

yw