Question

find the area of circle ,whose diameter is 7m and 12.6cm​

Answer 1

Answer:

Hope it helps!! Mark this answer as brainliest if u found it useful and follow me for quick and accurate answers...

Step-by-step explanation:

area of circle = Pie*r*r

area of circle when diameter is 7cm

diameter = 7m. so, radius = 7/2 = 3.5m

area of circle = 22/7 * 3.5*3.5 = 38.5m^2

area of circle when diameter is 12.6cm

diameter = 12.6cm. so, radius = 12.6/2 = 6.3cm

area of circle = 22/7 *6.3*6.3 = 124.74  cm^2

Answer 2

Answer:

38.48 is the radius of your circle

Step-by-step explanation:

• FIRST STEP :- USE THE FORMULA OF AREA OF CIRCLE

i.e. π × r² and radius = DIAMETER / 2

• SECOND STEP :- Put The value of radius in the formula

r= 7/2 i.e. 3.5

π= 3.14

So, Area = 3.14 × (3.5)²

= 38.48