CBSE Class 8 Mathematics Mensuration Worksheet Set B

Question. EVERY number in area Q must be divisible by

(a) 10
(b) 12
(c) 16
(d) 24

Answer : B

Question. The shape given below is made up of identical small squares.
 If the area of the whole shape is 24 cm2, what is its perimeter?

(a) 24 cm
(b) 28 cm
(c) 48 cm
(d) 56 cm

Answer : B

Question. What is the area of the shaded part of the SQUARE shown below?

(a) 35 sq cm
(b) 70 sq cm
(c) 85 sq cm
(d) 93 sq cm

Answer : C

Question. In a triangle PQR, ∠Q =500 and ∠R=750 . Which of these statements is true about the sides of the triangle?

(a) PR < QR
(b) QR = PQ
(c) PQ < PR
(d) PQ < QR

Answer : D

Question. Frostee ice cream packs are available in two different sizes as shown below.
Abbas needs 10 litres of vanilla ice cream for a party. What is the MINIMUM cost at which Abbas can get enough ice cream for his party?

(a) Rs. 340
(b) Rs. 350
(c) Rs. 400
(d) Rs. 450

Answer : A

Question. How many pieces exactly like this one are needed to form a complete circle (circular region)?

(a) 6
(b) 8
(c) 10
(d) 12

Answer : D

Question. A part of one side of a vessel is shown below.
Using this beaker which of these measurements can be made EXACTLY?

(a) 121.5  ml
(b) 124 ml
(c) 125 ml
(d) 128 ml

Answer : C

Question. If the above figure is turned by 270° in an ANTICLOCKWISE direction, which of these would be the result?

Answer : A

Question. What is the area of the shaded part of the square?

(a) 2a² - ab
(b) 4a  -  ab
(c) 4a² - ab
(d) 2a² + ab

Answer : C

Question. A small cube is cut off from a larger cube as shown below.
For the ORIGINAL CUBE, which of the following will remain unchanged

(a) the volume
(b) the total surface area
(c) the number of edges
(d) the number of corners

Answer : B

Question. Which figure below has the same perimeter as?

Answer : A

Question. The three sides of which of these triangles could be 9, 12 and 15 units?

Answer : C

Question. A triangle can be formed using which of the following sets of sticks?

Answer : A

Question. What is the perimeter of the figure shown below?

(a) 21 units
(b) 24 units
(c) 26 units
(d) 28 units

Answer : C

Question. In the above figure, which of these will NOT equal 180°?

(a) ∠A + ∠B + ∠C
(b) ∠F + ∠G
(c) ∠A + ∠B + ∠D + ∠F
(d) ∠E + ∠A + ∠B

Answer : D

Question. A man bought a rectangular field of length 144 m and width 64 m. In exchange for this field he wanted to buy a square field of the same area. What would the side of the square field be?
(A) 104m
(B) 208m
(C) 96m
(D) 416m

Answer : C

Question. A tank with a square base has a volume of 384 cm³. If its height is 6 em, find the length of the side of the square base.
(A) 10 cm
(B) 8 cm
(C) 12 cm
(D) 6 cm

Answer : B

Question. In the figure given, RSTV is a square inscr ibed in a circle with centre 0 and radius 'r'. What is the total area of unshaded region?

(A) r 2(n- 2) sq. units
(B) 2r(2 - 7t) sq. units
(C) 1t(r2 - 2) sq. units
(D) (nr2 - 8r) sq. units

Answer : A

Question. The area of a parallelogram is 120 cm² and its altitude is 10 em. Find the length of the base.
(A) 24 cm
(B) 12 cm
(C) 8 cm
(D) 4 cm

Answer : B

Question. The area of a rhombus is 28 cm² and one of its diagonals is 4 cm. Find its perimeter.
(A) 4J53 cm
(B) 36 cm
(C) 2J53 cm
(D) 44 cm

Answer : A

Question. The base of an isosceles right triangle is 30 cm. Find its area.
(A) 225 cm²
(B) 225.√3 cm²
(C) 5√2 cm²
(D) 6√3 cm²

Answer : A

Question. What is the percentage change in the area of a rectangle obtained by decreasing its length and increasing its breadth by 5%?
(A) 2.5% increase
(B) 0.25% increase
(C) 0.25% decrease
(D) 2.5% decrease

Answer : C

Question. What is the area of an isosceles triangle having base 'x' em and one side 'y' cm?

Answer : B

Question. What is the length of the diagonal of a square whose area is 16900 m² ?
(A) 130m
(B) 130√2m
(C) 169m
(D) 144m

Answer : B

Question. The sides of a triangle are 3 em, 5 cm and 4 cm. What is its area?
(A) 6 cm²
(B) 7.5 cm²
(C) s.J2 cm²
(D) 10 cm²

Answer : A

Question. Find the area of the sector of a circle, whose radius is 6 m when the angle at the centre is 42 °.
(A) 13.2 m²
(B) 14.2 m²
(C) 13.4 m²
(D) 14.4 m²

Answer : A

Question. A sector of 120" cut out from a circle has an area of 9(3/7) sq. em. What is the radius of the circle?
(A) 3 cm
(B) 2.5 cm
(C) 3.5 cm
(D) 3.6 cm

Answer : A

Question. The sides of a triangle are 16 em, 30 cm and 34 cm. What is its area ?
(A) 120 cm²
(B) 260 cm²
(C) 240 cm²
(D) 272 cm²

Answer : C

Question. The area of a trapezium is 28 cm² and one of its parallel sides is 6 em. If its altitude is 4 cm, find its other parallel side.
(A) 4 cm
(B) 8 cm
(C) 6 cm
(D) 10 cm

Answer : B

Question. The perimeter of a triangular field is 144 m and the ratio of its sides is 3 : 4 : 5. What is the area of the field?
(A) 864m²
(B) 468m²
(C) 824m²
(D) 486m²

Answer : A

Question. Find the area of a segment of a circle of radius 21 em if the arc of the segment has a measure of 60°. (Take √3 = 1.73)
(A) 45.27 cm²
(B) 40.8 cm²
(C) 40.27 cm²
(D) 42.07 cm²

Answer : C

Question. An empty tank was 5 full after 1.5 l of water was poured in it. The base area of the tank was 250 cm². What was the height of the tank?
(A) 15 cm
(B) 5 cm
(C) 4 cm
(D) 8 cm

Answer : A

Question. A rectangular field has its length and breadth in the ratio 5 : 3. Its area is 3.75 hectares. Find the cost of fencing it at ₹5 per metre.
(A) ₹400
(B) ₹4000
(C) ₹1000
(D) ₹500

Answer : B
 

Students must free download and practice these worksheets to gain more marks in exams. CBSE Class 8 Mathematics Worksheet - Mensuration