Question

a) Work out the surface area of shape B

b) work out the volume of shape A.
(With the working pls)

Answer 1

Answer:

a) Using the formula of similarity, we have:

(L1/L2)^2=A1/A2

(4/8)^2= 80/x

16/64= 80/x

x= 64*80/16

x= 320

Ans: Surface area of shape B= 320 square centimeters.

b) Using the formula of similarity, we have:

(L1/L2)^3=V1/V2

(4/8)^3=x/600

x= 64*600/512

x=75

Ans: Volume of shape B is 75 Cubic centimeters.