Question

The square pyramid pictured below has a surface area of _____.
144 m 2
120 m 2
189 m 2
126 m 2


What is the surface area of a sphere with a radius of 7 feet? (Use 3.14 for π.)

175.84 ft 2
615.44 ft 2
351.68 ft 2
703.36 ft 2

What is the radius of a sphere if its surface area is 2,122.64 square inches? (Use 3.14 for π.)

11 in.
13 in.
121 in.
169 in.

Answer 1

for first Q only

Answer 2

@Chumpian @imqwerty

Answer 3

144

Answer 4

<3 thanks and i got help on the second one so i just have the third question left

Answer 5

13

Answer 6

thanks:)

Answer 7

https://en.wikipedia.org/wiki/Pyramid_(geometry)