If angle ABC is 40 degrees (see figure), and the area of the circle is `81pi`, how long is arc AXC?

Angle ABC is 40^@ (see figure) and the area of the circle is 81 pi . If CB is a diameter of the circle, how long is arc AXC?

Triangle ABC is inscribed in a circle, such that AC is a diameter of the circle and angle BAC is 45^@ . If the area of triangle ABC is 72 square units, how larger is the area of the circle than the area of triangle ABC ?

In the given figure O is the centre of circle and angle BOC = 30^(@) , angle AOB = 60^(@) If there is a point D on the circle, not on arc ABC, then find angle ADC

In the following figure, O is the centre of the circle. /_ ABC is inscribed in arc ABC and /_ ABC = 65^(@) . Complete the following activity to find the measure of /_ AOC Activity : /_ ABC = (1)/(2) m square …..(Inscribed angle theorem) :. square xx 2 m (arc AXC) :. m (arc AXC = square /_ AOC = m (arc AXC)... (Definition of measure of minor arc) :. /_ AOC = square

The circumference of a circle whose area is 81 pi r^2 , is

In a circle of radius 28 cm, an arc subtends an angle of 108^(@) at the centre . (a) Find the area of the sector. (b) Find the length of the arc.

In a circle with centre O. an arc ABC subtends an angle of 136^(@) at the centre of the circle. The chord AB is produced to a point P. Then angle CBP is equal to :

The area of sector is 40 pi cm^(2) and the length of the correspondig arc is 10 pi cm, then the diameter of the circle is

In the figure, O is the centre of the circle. Seg AC is the diameter /_ ABC is inscribed in arc ABC and intercepts arc AMC then prove /_ ABC = 90^(@)

A B and CD are respectively arcs of two concentric circles of radii 21 CM and 7cm which center O(see figure).If /_=30^@ find the area of the shaded region. ( use pi=22/7 )