Question

find the radius of a circle whose diameter is:
a) 7 cm b) 2 m c) 5.12 cm ​

Answer 1

Answer:

a) 3.5 cm

b) 1 cm

c) 2.56

we used the formula D=2r

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Answer 2

Answer:

a) 3.5cm

b) 1m

c) 2.56cm

Step-by-step explanation:

a  ) Radius = Diameter /2 = 7cm / 2 = 3.5 cm

b) Radius = Diameter /2 = 2m / 2 = 1m

c) Radius = Diameter /2 = 5.12 / 2 = 2.56 cm