Answered

Find the areas of circles having the following radii:
a) 13 cm b) 28 m c) 1.375 dm

Sagot :

Jers15id
Formula for the area of circle:
a.13 cm
A=πr²
A=π(13 cm)²
A=169π cm² or 530.66 cm²

b.28 m
A=πr²
A=π(28 m)²
A=784π m² or 2,461.76 m²

c.1.375 dm
A=πr²
A=π(1.375 dm)²
A=1.89π dm² or 5.93 dm²

Hope this helps =)