Advertisements
Advertisements
рдкреНрд░рд╢реНрди
Find the circumference of the circle with the following radius: (Take `bb(pi = 22/7`)
14 cm
рдЙрддреНрддрд░
r = 14 cm
Circumference = 2πr
= `2 xx 22/7 xx 14`
= 88 cm
APPEARS IN
рд╕рдВрдмрдВрдзрд┐рдд рдкреНрд░рд╢реНтАНрди
An elastic belt is placed around the rim of a pulley of radius 5 cm. (Fig. 10) From one point C on the belt, the elastic belt is pulled directly away from the centre O of the pulley until it is at P, 10 cm from the point O. Find the length of the belt that is still in contact with the pulley. Also find the shaded area (use π = 3.14 and `sqrt3=1.73)`
In Figure, find the area of the shaded region [Use π = 3.14]
In the given figure, тИЖ ABC is a right-angled triangle in which ∠ A is 90°. Semicircles are drawn on AB, AC and BC as diameters. Find the area of the shaded region
OACB is a quadrant of a circle with centre O and its radius is 3.5 cm. If OD = 2 cm. find the area of
- quadrant OACB
- the shaded region.
A chord of a circle of radius 30 cm makes an angle of 60° at the centre of the circle. Find the area of the minor and major segments.
Find the area and perimeter of the circle with the following:
Diameter= 35 cm
Find the curved surface area , the total surface area and the volume of a cone if its :
Height = 8 cm , diameter = 12 cm
A 4.2 m wide road surrounds a circular plot whose circumference is 176 m. Find the cost of paving the road at Rs 75 m 2.
Sand from a cylindrical bucket 32 cm in height and 18 cm in radius is poured onto the ground making a conical heap 24 cm high. Find the radius of the conical heap.
The distance around a circle is its ______.