Find the area of the shaded region in the given figure, if PQ = 24 cm, PR = 7 cm and O is the centre of the circle.
Find the area of the segment AYB shown in the given figure, if radius of the circle is 21 cm and angle AOB = 120^(@) . (Use pi = (22)/(7) )
Find the area of the segment AYB shown in the adjacent figure. It is given that the radius of the circle is 21 cm and /_AOB=120^(0)(Usepi=(22)/(7) and sqrt(3)=1.732 )
Find the area of the shaded region in the given figure, if radii of the two concentric circles with centre O are 7 cm and 14 cm respectively and angle AOC = 40^(@) .
In the figure, ‘O’ is the centre of the circle. OM = 3cm and AB = 8cm. Find the radius of the circle
In the given figure, AB = 36 cm and M is the midpoint of AB. Semicircles are drawn on AB, AM and MB as diameters. A circle with centre C touches all the three circles. Find the area of shaded region. [Hint : Take O as the centre of semicircle on diameter AM. Take the radius of the circle with centre C as r. Then , OC = (9 + r)cm, OM = 9 cm and CM = (18-r) cm. Now, use Pythagoras theorem and find r = 6 cm.]
Find the surface area of a sphere of radius 7 cm.
An open metal bucket is in the shape of a frustum of a conce. Mounted on a hollow cylinderical base made of the same metallic sheet (see the given figure) the diameters of the two circular ends of the bucket are 45 cm and 25 cn. The vertical height of the bucket is 40 cm and that of the cylinderical base is 6 cm. find the area of the metallic sheet used to make the bucket, hwere we do not tak einto account the handle of the bucket. also, find the volu8me of water the bucket can hold (Take pi=(22)/(7))
Find the area of the shaded region in the given figure, where ABCD is a square of side 14 cm.
NCERT GUJARATI-TANGENTS AND SECANTS TO A CIRCLE-Try this
