Please select a subject first
Advertisements
Advertisements
The radius of a circle is 7 cm. find the circumference of the circle.
Concept: Circumference of a Circle
In figure, ΔABC is an isosceles triangle with perimeter 44 cm. The base BC is of length 12 cm. Side AB and side AC are congruent. A circle touches the three sides as shown in the figure below. Find the length of the tangent segment from A to the circle.

Concept: Circumference of a Circle
The radii of ends of a frustum are 14 cm and 6 cm respectively and its height is 6 cm. Find its volume \[\pi\] = 3.14)
Concept: Frustum of a Cone
The circumferences of circular faces of a frustum are 132 cm and 88 cm and its height is 24 cm. To find the curved surface area of the frustum complete the following activity.( \[\pi = \frac{22}{7}\])

Concept: Frustum of a Cone
In the given figure,
\[\square\] PQRS is a rectangle. If PQ = 14 cm, QR = 21 cm, find the areas of the parts x, y, and z.

Concept: Circumference of a Circle
Concept: Circumference of a Circle
Choose the correct alternative answer for the following question.
The curved surface area of a cylinder is 440 cm 2 and its radius is 5 cm. Find its height.
Concept: Circumference of a Circle
Choose the correct alternative answer for the following question.
Concept: Circumference of a Circle
Choose the correct alternative answer for the following question.
Concept: Circumference of a Circle
The area of a sector of a circle of 6 cm radius is 15 π sq. cm. Find the measure of the arc and the length of the arc corresponding to the sector.
Concept: Length of an Arc

In the given figure, seg AB is a chord of a circle with centre P. If PA = 8 cm and distance of chord AB from the centre P is 4 cm, find the area of the shaded portion. ( \[\pi\] = 3.14, \[\sqrt{3}\]= 1.73 )
Concept: Length of an Arc
In Δ ABC, if ∠ A = 65° ; ∠ B = 40° then find the measure of ∠ C.
Concept: Length of an Arc
Length of a rectangular tank is twice its breadth. If the
depth of the tank is 3 m and area of its four walls is 108 m2, find the
length of the tank.
Concept: Length of an Arc
Diagonal of a square is 20 cm. Find the length and perimeter of the square.
Concept: Circumference of a Circle
Find the length of an arc if measure of the arc is 90° and its radius
is 14 cm.
Concept: Length of an Arc
Measure of an arc of a sector of a circle is 900 and its radius is 7cm. Find the perimeter of the sector.
(A) 44 cm (B) 25 cm (C) 36 cm (D) 56 cm
Concept: Length of an Arc
Draw the circumcircle of Δ PMT in which PM = 5.4, P = 60°, M = 70°.
Concept: Circumference of a Circle

A circle is inscribed in square ABCD of side 14 cm. Complete the following activity to find the area of the shaded portion.
Activity:
Area of square ABCD = ______
= 142
= 196 cm2
Area of circle = πr2 = `22/7xx 7^2`
= ____ cm2
Area of shaded portion = Area of square ABCD – Area of circle
= 196 – _______
= _____ cm2
Concept: Length of an Arc

In the given figure `square`ABCD is a square of side 50 m. Points P, Q, R, S are midpoints of side AB, side BC, side CD, side AD respectively. Find area of shaded region
Concept: Length of an Arc
If x = `θ/360` × 2πr then what is x in the formula?
Concept: Length of an Arc
