Advertisements
Advertisements
प्रश्न
Area of the circle obtained in 196 m2 is ______.
विकल्प
196 cm2
212 cm2
616 cm2
644 cm2
Advertisements
उत्तर
Area of the circle obtained in 196 m2 is `bb(underline(616 cm^2))`
Explanation:
We know that, area of circle = πr2
= `22/7 xx 14 xx 14`
= 22 × 14 × 2
= 616 cm2
APPEARS IN
संबंधित प्रश्न
The cost of painting the four walls of a room 12 m long at ₹ 30 per m2 is ₹ 7560 and the cost of covering the floor with mat at ₹ 25 per m2 is ₹ 2700. Find the dimensions of the room.
In the following figure, AB and CD are two diameters of a circle perpendicular to each other and OD is the diameter of the smaller circle. If OA = 7 cm, find the area of the shaded region.
In the following figure, ABC is a right-angled triangle, ∠B = 90°, AB = 28 cm and BC = 21 cm. With AC as diameter a semicircle is drawn and with BC as radius a quarter circle is drawn. Find the area of the shaded region correct to two decimal places.
What is the angle subtended at the centre of a circle of radius 6 cm by an arc of length 3 π cm?
Find the area of the largest triangle that can be inscribed in a semi-circle of radius runits.
The ratio of the outer and inner perimeters of a circular path is 23 : 22. If the path is 5 metres wide, the diameter of the inner circle is
The area of a circle is 220 cm2. The area of ta square inscribed in it is
If the area of a circle is numerically equal to twice its circumference, then what is the diameter of the circle?
Find the area of a circle of radius 30 cm (use π = 3.14).
In figure, AB is a diameter of the circle, AC = 6 cm and BC = 8 cm. Find the area of the shaded region (Use π = 3.14).
