Question

find the area of semi circular region if the diameter is 20 cm​

Answer 1

here u go ...................

WE KNOW THAT AREA OF A SEMICIRCLE IS πR²/2

SO, DIAMETER = 2R  (R=RADIUS)

⇒20=2R

⇒R=10CM

THUS PUTTING THE VALUES WE GET,

πR²/2

⇒22/7×10×10×1/2

⇒ 157.14 CM²

HOPE IT HELPS U.................☺☺☺☺