Advertisements
Advertisements
Question
The radius of the circle is given below; find the area.
28 cm
Solution
28 cm
Ar = πr2
= π x (28)2
= `22/7 xx 28 xx 28`
= 2464 sq cm
RELATED QUESTIONS
Find the circumference of the circle with the following radius: (Take `bb(pi = 22/7`)
21 cm
Choose the correct alternative answer for the following question.
In making 1000 revolutions, a wheel covers 88 km. The diameter of the wheel is
A wire when bent in the form of a square encloses an area of 484 cm2. If the same wire is bent into the form of a circle, find the area of the circle.
Find the area grazed by a horse tied with a 11. 2 m rope to a corner of a field measuring 25m by 15 m.
The diameter of a wheel is 1.4m. How many revolutions does it make in moving a distance of 2.2 kms?
The wheel of the car makes 10 revolutions per second. If its diameter is 70 cm, find the speed of the car in km per hour.
Circumference of a circle disc is 88 cm. Its radius is ______.
