Question

If area of quadrant of a circle is 38.5 cm2 then find its diameter

Answer 1

Answer:

7cm

Using the formulas

A=πr2

d=2r

Solving ford

d=2A

π=2·38.5

π≈7.00141cm

Answer 2

Answer:

14 cm

Step-by-step explanation:

use the formula of a ar of sector with theta 90

the radius will be 7 cm

so diameter is twice the radius so diameter is 14 cm