Question

1.A circle has a radius of 12cm. How long is its diameter?
2.A circle has a diameter of 36cm. How long is its radius?​

Answer 1

Answer:

24 cm and 18 cm

Step-by-step explanation:

part 1.

since diameter is equal to 2r therefore, diameter is 2 into 12 i. e 24 cm

similarly radius is half of diameter and hence radius is 1/2*36 i.e 18 cm

Answer 2

Answer:

1) Radius of the circle - 12 cm

then, diameter of the circle = Radius× 2

diameter = 12×2 = 24 cm .

2) Diameter of the circle = 36 cm

RADIUS = Diameter ÷ 2

Radius = 36÷ 2 = 18 cm.