Question

Perpendicular sides of a right angled triangle are 12 and 16.What is the area of the semicircle drawn with the hypotenuse as a diameter

Answer 1

Answer:

157

Step-by-step explanation:

TO FIND LENGHT OF HYPOTENUSE:

• a²+b²=c²
• 12²+16²= 400
• c²=400
• c = squareroot of 400
• =20

AS MENTIONED, DIAMETER IS EQUAL TO HYPOTENUSE

• =20 CM

AREA OF A CIRCLE: Pi r²

3.14×(d÷2)²

3.14× 10²

314

AREA OF A SEMI CIRCLE=AREA OF A CIRCLE ÷2

314÷2

157

Answer 2

Answer:

157

Step-by-step explanation:

TO FIND LENGHT OF HYPOTENUSE:

a²+b²=c²

12²+16²= 400

c²=400

c = squareroot of 400

=20

AS MENTIONED, DIAMETER IS EQUAL TO HYPOTENUSE

=20 CM

AREA OF A CIRCLE: Pi r²

3.14×(d÷2)²

3.14× 10²

314

AREA OF A SEMI CIRCLE=AREA OF A CIRCLE ÷2

314÷2

157