Advertisements
Advertisements
प्रश्न
The area of the circle is given below; find the diameter.
176 sq cm
Advertisements
उत्तर
Area of the circle = 176 sq. cm ....[Given]
Area of the circle = πr2
∴ 176 = `22/7 × r^2`
∴ r2 = `176 × 7/22`
∴ r2 = 56
∴ r = `sqrt(56)` ….[Taking square root of both sides]
Diameter = 2r = `2sqrt(56)` cm
संबंधित प्रश्न
A car travels 1 km distance in which each wheel makes 450 complete revolutions. Find the radius of wheel.
The area of rhombus is `480cm^2` , and one of its diagonal measures 48 cm. Find
(i) the length of the other diagonal,
(ii) the length of each of the sides
(iii) its perimeter
A sector of 56°, cut out from a circle, contains 17.6 cm2. Find the radius of the circle.
The area of a circle inscribed in an equilateral triangle is 154 cm2. Find the perimeter of the triangle.
If the sum of the circumferences of two circles with radii R1 and R2 is equal to the circumference of a circle of radius R, then ______.
The diameter of a wheel is 84 cm. How many revolutions will it make to cover 792 m?
A cylindrical beaker of 7 cm diameter is partly filled with water. Determine the number of spherical marbles of diameter 1.4 cm that are to be submerged in it to raise the water level by 5.6 cm
AC and BD are two perpendicular diameter of a circle ABCD. Given that the area of shaded portion is 308 cm2 calculate:
(i) The length of AC and
(ii) The circumference of circle
Complete the table below.
| Radius (r) | Diameter (d) | Circumference (c) |
| ...... | ...... | 72.6 cm |
Circumference ‘C’ of a circle is equal to 2π × ______.
