The ratio of the outer and the inner circumference of a circular path is 5 : 4. If path is 50 metres wide, then what is the radius of the inner circle?

In the figure given below, PQ is the diameter of the circle with centre O. If ∠QOR=100°, then the measure of ∠PSR is:

Three cubes with sides in the ratio of 3:4:5 are melted to form a single cube whose diagonal is 18√3 cm. The sides of the three cubes are:

The area of a sector of a circle is 110 cm² and the central angle of the sector is 56°. What is the radius of the circle? (Take π=22/7)

The area of the sector of a circle (in cm²) of radius 7 cm and central angle 60° is:
(Take π=22/7)

What is the area of the sector of a circle of radius 8 cm and formed by an arc of length 12 cm ?

Two circles with centres at O1 and O2 touching each other are placed inside a rectangle of sides 9 cm and 8 cm as shown in the figure given below.

What is the area of the shaded region?

Let ABCD be the diameter of a circle of radius 6 cm. The lengths AB, BC and CD are equal. Semi - circles are drawn with AB and BD as diameters as shown in the figure given below.


What is the ratio of the area of the shaded region to that of the non-shaded region?

Two circles with centres at O1 and O2 touching each other are placed inside a rectangle of sides 9 cm and 8 cm as shown in the figure given below.

Which one of the following is correct in respect of ?

Consider a circle of area 9π square unit and an equilateral triangle ABC as shown in the figure given below.


What is the length of the side of the triangle ABC?