CBSE Class 8 Mathematics Understanding Quadrilaterals MCQs Set B

CBSE Class 8 Mathematics Understanding Quadrilaterals MCQs Set B with answers available in Pdf for free download. The MCQ Questions for Class 8 Mathematics with answers have been prepared as per the latest syllabus, NCERT books and examination pattern suggested in Standard 8 by CBSE, NCERT and KVS. Multiple Choice Questions are an important part of Term 1 and Term 2 exams for Grade 8 Mathematics and if practiced properly can help you to get higher marks. Refer to more Chapter-wise MCQs for NCERT Class 8 Mathematics and also download more latest study material for all subjects

Understanding Quadrilaterals Class 8 MCQ

Class 8 Mathematics students should refer to the following multiple-choice questions with answers for Understanding Quadrilaterals in standard 8. These MCQ questions with answers for Grade 8 Mathematics will come in exams and help you to score good marks

Class 8 Understanding Quadrilaterals MCQ Questions with Answers

 

Question: The perimeter of a parallelogram is 180 cm. One side exceeds another by 10 cm. The sides of the parallelogram are

  • a) 40 cm, 50 cm
  • b) 50 cm each
  • c) 45 cm each
  • d) cannot be determined

Answer: 40 cm, 50 cm


Question: One of the diagonals of a rhombus is equal to a side of the rhombus. The angles of the rhombus are

  • a) 60° and 120°
  • b) 100° and 120°
  • c) 60° and 80°
  • d) 120° and 240°

Answer: 60° and 120°


Question: In the quadrilatral ABCD, the diagonals AC and BD are equal and perpendicular to each other. Then ABCD is a

  • a) square
  • b) rhombus
  • c) parallelogram
  • d) trapezium

Answer: square


Question: In a parallelogram ABCD, if AB = 2x + 5, CD = y + 1, AD = y + 5 and BC = 3x – 4 then ratio of AB : BC

  • a) 31 : 35
  • b) 71 : 21
  • c) 12 : 11
  • d) 4 : 7

Answer: 31 : 35


Question:

  • a) 40°
  • b) 90°
  • c) 10°
  • d) 50°

Answer: 40°


Question: A diagonal of a rectangle is inclined to one side of the rectangle at 25°. the acute angle between the diagonals is

  • a) 50°
  • b) 25°
  • c) 40°
  • d) 55°

Answer: 50°


Question:

  • a) 50°
  • b) 40°
  • c) 45°
  • d) 60°

Answer: 50°


Question: The quadrilateral formed by joining the mid points of the sides of a quadrilateral PQRS, taken in order, is a rectangle if

  • a) diagonals of PQRS are perpendicular
  • b) PQRS is a rectangle
  • c) PQRS is a parallelogram
  • d) diagonals sof PQRS is equal

Answer: diagonals of PQRS are perpendicular


Question: If angles P, Q, R and S of the quadrilateral PQRS, taken in order, are in the ratio 3: 7 : 6 : 4 then PQRS is a

  • a) trapezium
  • b) rhombus
  • c) parallelogram
  • d) kite

Answer: trapezium


Question: If PQ and RS are two perpendicular diameters of a circle, then PQRS is a

  • a) square
  • b) rectangle
  • c) trapezium
  • d) rhombus but not square

Answer: square

 

Question: AB and CD are diameters. Then ACBD is

  • a) rectangle
  • b) trapezium
  • c) square
  • d) isosceles trapezium

Answer: rectangle


Question: ABCD is a square E, F, G, H are the mid-mid-points of the four sides. Then the figure EFGH is

  • a) square
  • b) trapezium
  • c) rectangle
  • d) parallelogram

Answer: square


Question: If a quadrilateral has two adjacent sides equal and the other two sides equal it is called

  • a) kite
  • b) square
  • c) parallelogram
  • d) rectangle

Answer: kite


Question: Choose the correct statement:

  • a) If the diagonals of a quadrilateral intersect at right angles, it is not necessary a rhombus
  • b) Every quadrilateral is either a trapezium or a parallelogram or a kite
  • c) The diagonals of a rectangle are perpendicular to each other
  • d) The diagonals of a parallelogram are equal

Answer: If the diagonals of a quadrilateral intersect at right angles, it is not necessary a rhombus


Question: If two adjacent angles of a parallelogram are in the ratio 3:2, then the measure of the angles are

  • a) 108°, 72°
  • b) 100°, 80°
  • c) 72°, 36°
  • d) 144°, 36°

Answer: 108°, 72°


Question: ABCD is a quadrilateral. If AC and BD bisect each other then ABCD must be

  • a) parallelogram
  • b) square
  • c) rectangle
  • d) The angle

Answer: parallelogram


Question: The diameter of circumcircle of a rectangle is 10 cm and breath of the rectanelge is 6 cm. Its length i s

  • a) 8 cm
  • b) 6 cm
  • c) 5 cm
  • d) none

Answer: 8 cm


Question: The sum of the angles of a quadrilateral is

  • a) 360°
  • b) depends on the quadrilateral
  • c) 180°
  • d) 270°

Answer: 360°


Question: A parallelogram which has equal diagonals is a

  • a) rectangle
  • b) none
  • c) square
  • d) rhombus

Answer: rectangle

 CHAPTER –3.

UNDERSTANDING QUADRILATERALS

Put a tick mark(√) on the correct answer :

Q1.How many diagonals does a convex quadrilateral has ?
(i) one (ii) two (iii) three (iv) four

 

Q2.What is the sum of all interior angles of a pentagon ?
(i) 180° (ii)360° (iii)540° (iv)720°

Q3. How many sides a regular polygon has whose each exterior angle is 45° ?
(i) eight (ii) seven (iii) six (iv) five

 

Q4.What is the minimum interior angle possible for a regular polygon?
(i) 60° (ii)80° (iii) 120° (iv)160°

 

Q5. What is the maximum exterior angle possible for a regular polygon?
(i) 60° (ii) 80° (iii) 120° (iv)160°

 

Q6. What is the perimeter of the parallelogram whose two adjacent sides are 12cm & 7cm?
(i) 28cm (ii) 38cm (iii) 84cm (iv)168cm

 

Q7. What is the area of the rectangle whose perimeter is 16 cm & length 5 cm ?
(i) 3.2cm2 (ii) 80cm2 (iii) 15cm2 (iv)16cm2

 

Q8.In the given parallelogram , find the value of ‘x’, ‘y’ & ‘z

 

Q9.If the two adjacent angles of a parallelogram are equal then each of its angle is ?
(i) 70° (ii) 80° (iii) 90° (iv) 100°

Q10.If the two diagonals of a rhombus are 8cm & 6cm, its area is ?
(i) 28cm2 (ii) 48cm2 (iii) 14cm2 (iv) 24cm2 


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