Advertisements
Advertisements
Question
If the circumference of a circle is 176 cm, find its radius.
Advertisements
Solution
Circumference = 176 cm
Circumference = 2πr ... (where 'r' is the radius of circle)
176 = `2xx22/7xx"r"`
176 × 7 = 2 × 22 × r
1232 = 44r
`1232/44` = r
r = 28
∴ The radius of the circle = 28 cm
RELATED QUESTIONS
A bicycle whell makes 5000 revolutions in moving 11 km. Find the diameter of the wheel
The radii of two circles are 19 cm and 9 cm respectively. Find the radius of the circle which has circumference equal to the sum of the circumferences of the two circles.
Find the area of the rhombus, the length of whose diagonals are 30 cm and 16 cm. Also, find the perimeter of the rhombus.
Find the area of the sector of a circle having radius 6 cm and of angle 30°. [Take π = 3.14]
Find the area and perimeter of the following semi-circle :
Radius= 1.4 cm
A cylindrical bucket, whose base radius is 20 cm, is filled with water to a height of 25 cm. A heavy iron spherical ball of radius 10 cm is dropped to submerge completely in water in the bucket. Find the increase in the level of water.
Draw the circumcircle of Δ PMT in which PM = 5.4, P = 60°, M = 70°.
Construct the circumcircle of the ABC when BC = 6 cm, B = 55° and C = 70°.
The diameter of a cycle wheel is `4(5)/(11)"cm"`. How many revolutions will it make in moving 6.3km?
The area between the circumference of two concentric circles is 2464cm2. If the inner circle has a circumference of 132cm, calculate the radius of the outer circle.
