Question

perpendicular side of a right angled triangle are 12 cm and 16 cm if a semi circle is drawn as the hypoteneus as its diameter what is the area of the semi circle​

Answer 1

Answer:

First of all we find the hypotenouse by pythagoras theorem p²=b²+h² we get h= 400

now h is dia so, 1/2 h = radius, now we find radius as 200 , now area of a circle is 2×pi×r , Area of semicircle is equal to pi×r

pi= 22/7

Area of semicircle = pi × r

= 22/7 × 200

= 628.5714 is ans