From a circular sheet of radius 5 cm, a circle of radius 2 cm is removed. The area of the remaining sheet (use pie=22/7) is ?
Answers
Answer:
66 cm²
Step-by-step explanation:
let the radius of circle with radius 5 cm = R
and the radius of circle with radius 2 cm = r
Area of circle with radius (R) = πR²
= 22/7 * (5)²
= 22/7 * 25
= 550/7 cm²
Area of circle with radius (r) = πr²
= 22/7 * (2)²
= 22/7 * 4
= 88/7 cm²
area of remaining sheet = ( πR² - πr² ) cm²
= ( 550/7 - 88/7 ) cm²
= ( 462/7 ) cm²
= 66 cm²