Question

perimeter of a semicircle is 180 cm
find it's radius and diameter​

Answer 1

Step-by-step explanation:

Perimeter of a semicircle = 180 cm

therefore the perimeter or circumference of whole circle is 2×180 = 360 cm

Circumference of a circle= 2πr

360= 2πr

r = 360/2π

r = 180π

Radius of circle = 180π

Diameter of circle= 2×180π cm

= 360π cm

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