Question

please help will give medals

Answer 1

What is the surface area of the composite figure?

A rectangular prism with a square base pyramid attached to the top. The square base of the rectangular prism has sides measuring 6 millimeters, the prism's height is 7 millimeters. The pyramid has a square base with side lengths of 6 millimeters, and a slant height of 4 millimeters.

two hundred fifty-two square millimeters

two hundred sixty-four square millimeters

three hundred square millimeters

three hundred twenty-four square millimeters

Answer 2

I'd be happy to help. Medal or no medal :-)

Answer 3

Surface area=area of base + area of sides
Do you understand the idea of surface area? example: for a cube you would have to find the area of one side and then multiply this by 6 because all sides have the same area (base*height)

Answer 4

ok

Answer 5

So for the figure sits on a base (bottom floor) what is the area of this?

Answer 6

base is 36

Answer 7

Then we have four rectangular faces,each having area 7mm*6mm=42 mm squared

Answer 8

correct base is 36 mm squared

Answer 9

12 * 4 = 48 which equals all the triangle

Answer 10

126 is the answer

Answer 11

Yes you are correct for all the triangular faces

Answer 12

Not quite each rectangular face has area 42mm squared so we multiply times 4
42*4= 168 so our final answer add them all up 168+36+48= 252 square millimeters

Answer 13

thank you for the help

Answer 14

I think you got it maybe you misunderstood and quickly thought when I wrote 42mm for the rectangular faces that I had added it 4 times or multiplied it by 4 already...great job!!!

Answer 15

you are welcome!

Answer 16

126 isnt an option