Question

A surface area of angle is 154sq cm find the diameter​

Answer 1

Answer:

7.0 cm

Step-by-step explanation:

4×22/7/r^2=154

4×22×r^2=154×7

r^2=154×7/22×4

r^2=1078/88

r^2=12.25

r= root  12.25

r=3.5 cm

d= 3.5*2=7.0 cm