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प्रश्न
In the formula, C = 2πr, ‘r’ refers to
पर्याय
circumference
area
rotation
radius
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उत्तर
In the formula, C = 2πr, ‘r’ refers to radius
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संबंधित प्रश्न
In Fig. 6, find the area of the shaded region, enclosed between two concentric circles of radii 7 cm and 14 cm where ∠AOC = 40°. (use `pi = 22/7`)
In Fig. 3, APB and AQO are semicircles, and AO = OB. If the perimeter of the figure is 40 cm, find the area of the shaded region [Use `pi=22/7`]
In the given figure, if A(P-ABC) = 154 cm2 radius of the circle is 14 cm, find
(1) `∠APC`
(2) l ( arc ABC) .
Diagonal of a square is 20 cm. Find the length and perimeter of the square.
The circumference of a circle is 8 cm. Find the area of the sector whose central angle is 72°.
The base circumferences of two cones are the same. If their slant heights are in the ratio 5 : 4, find the ratio of their curved surface areas.
Sum of the areas of two squares is 157 m2. If the sum of their perimeters is 68 m, find the sides of the two squares.
Complete the table below.
| Radius (r) | Diameter (d) | Circumference (c) |
| ...... | ...... | 616 cm |
Complete the table below.
| Radius (r) | Diameter (d) | Circumference (c) |
| ...... | ...... | 72.6 cm |
The perimeter of a sector of radius 5.2 cm is 16.4 cm, the area of the sector is ____________.
