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zhenek [66]
3 years ago
13

2 Find the radius and diameter of a circle of area:a) 6.16 cm²b) 13.86 cm²​

Mathematics
1 answer:
Marrrta [24]3 years ago
6 0

Answer:

A.

Area = 6.16cm^2

by using Formula,

A=πr^2

6.16=3.14*r^2

r=1.4cm

now,

D=2*r

=2*1.4

=2.8 CM

B

A=13.86

now,

A=πr^2

13.86=3.14*r*r

4.41=r^2

r=2.1

D=2.1*2

=4.2 cm

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