Advertisements
Advertisements
प्रश्न
A circle of radius 2 cm is cut out from a square piece of an aluminium sheet of side 6 cm. What is the area of the left over aluminium sheet? (Take π = 3.14)
Advertisements
उत्तर
Area of square-shaped sheet = (Side)2
= (6)2
= 36 cm2
Area of circle = 3.14 × 2 × 2
= 12.56 cm2
Remaining area of sheet = 36 − 12.56
= 23.44 cm2
APPEARS IN
संबंधित प्रश्न
Find the perimeter and area of the quadrilateral ABCD in which AB = 17 cm, AD = 9 cm, CD = 12 cm, ∠ACB=90° and AC = 15 cm.
Find the area of the shaded region in the following figure, if AC = 24 cm, BC = 10 cm and O is the centre of the circle. (Use π = 3.14)
In a circle of radius 10 cm, an arc subtends an angle of 108° at the centre. what is the area of the sector in terms of π?
A circular park has a path of uniform width around it. The difference between the outer and inner circumferences of the circular path is 132 m. Its width is
If the area of a sector of a circle bounded by an arc of length 5π cm is equal to 20π cm2, then its radius is
The areas of two concentric circles are 1386 cm2 and 962.5 cm2. The width of the ring is
The wheel of a cart is making 5 revolutions per second. If the diameter of the wheel is 84 cm, find its speed in km per hour.
Find the area of the circle, length of whose circumference is equal to the sum of the lengths of the circumferences with radii 15 cm and 13 cm.
Find the area enclosed between two concentric circles, If their radii are 6cm and 13cm respectively.
Is the area of the circle inscribed in a square of side a cm, πa2 cm2? Give reasons for your answer.
