Find the area of largest square that can be inscribed in a circle of radius ‘r’.
The circumference of the two circles is 120 cm and 428 cm respectively. What is the difference between their radii?
- Find the area of a circle whose radius is (4/5)ᵗʰ of the side of a square whose area is 2,025 cm². (Use π = 3.14)
The radius of a circle is 7 cm. Find the area of the sector formed by a central angle of 90°.
- Calculate the area of a circle whose radius is (7/8)ᵗʰ of the side of a square whose area measures 1,600 cm². (Take π = 3.14)
The circumference of a wheel is 39.6 cm. What is the radius of the wheel?
Determine the diameter of the incircle of a triangle whose area is 60 cm² and the semi-perimeter is 20 cm.
A chord is 24 cm long and distance from center is 7 cm. Find radius.
The circumference of a circle is 44 cm. What is its radius? (Use π = 22/7)
The wheel of a car made 300 rotations. How much distance did the car travel if the diameter of the wheel is 28 inches? (1 inch = 2.54cm)