Question

Please help me! Will give medal :)
What is the surface area of the composite figure?

A) 252mm power of 2
B) 264mm power of 2
C) 300mm power of 2
D) 324mm power of 2

Answer 1

@iPwnBunnies help

Answer 2

Break it up into shapes. Find the area of each side of the rectangular prism.

Answer 3

Find the area of each triangle in the pyramid.

Answer 4

ok hold on

Answer 5

It should be a whole number.

Answer 6

One triangle has a base of 6 mm, a height of 4 mm, and there are 4 triangles.

Answer 7

48

Answer 8

now the 4 sides.
then the bottom

Answer 9

48 is including the 4 sides

Answer 10

the 48 is the 4 triangles on the top
now the rectangles that make the sides

Answer 11

42

Answer 12

yes. what about the other 3 sides? what do the 4 sides add up to ?

Answer 13

28

Answer 14

what is 28 ?

Answer 15

am i doing this wrong? ... i did 7*4 cause there are 4 sides and one side is 7mm

Answer 16

you want the area of each side. each side is a rectangle with 6 across and 7 up
one side has area of 6*7= 42
each side has that same area. there are 4 of them. how much is the area of all 4 sides ?

Answer 17

168

Answer 18

so far you know the 4 triangles have area of 48
the 4 "sides" are 168
now the bottom. what is the area of the bottom?

Answer 19

is it 36

Answer 20

yes, the bottom is 6 x 6 = 36
now add up all the areas
48+168+36

Answer 21

252

Answer 22

yes, that is the surface area of the figure. If you were painting it, that is how much you would paint.

Answer 23

thankyou so much!!! :)