Question

the area of a circular plate is 77.5 CM² what is the diameter of the plate​

Answer 1

Answer:

GIVEN AREA = 77.5 CMsquare

we know that area of circle is

pi × radius × radius

therefore

pi r square = 77.5

3.14 × r square = 77.5

r square = 24.68 = 25 cm

radius = root25

= 5 cm

Therefore Diameter is 2 × radius

= 2×5

=10cm