We have compiled the NCERT MCQ Questions for Class 8 Maths Chapter 3 Understanding Quadrilaterals with Answers Pdf free download covering the entire syllabus. Practice MCQ Questions for Class 8 Maths with Answers on a daily basis and score well in exams. Refer to the Understanding Quadrilaterals Class 8 MCQs Questions with Answers here along with a detailed explanation.
Understanding Quadrilaterals Class 8 MCQs Questions with Answers
Choose the correct option.
Question 1.
The angle sum of a convex polygon with number of sides n is
(a) (n – 2) 180°
(b) (n + 2) 180°
(c) (2n – 4) 180°
(d) (2n + 4) 180°
Answer
Answer: (a) (n – 2) 180°
Question 2.
What is the name of a regular polygon of 6 sides
(a) Square
(b) Equilateral triangle
(c) Regular hexagon
(d) Regular Octagon
Answer
Answer: (c) Regular hexagon
Question 3.
The sum of the measures of the exterior angles of any polygon is
(a) 90°
(b) 180°
(c) 360°
(d) 720°
Answer
Answer: (c) 360°
Question 4.
In an isosceles parallelogram, we have
(a) pair of parallel sides equal
(b) pair of non-parallel sides equal
(c) pair of non-parallel sides as perpendicular
(d) none of these.
Answer
Answer: (d) None of these.
Question 5.
Diagonal of which of the following quadrilaterals do not bisect it into two congruent triangles?
(a) Rhombus
(b) Square
(c) Rectangle
(d) Trapezium
Answer
Answer: (d) Trapezium
Question 6.
Which of the following is true for the adjacent angles of a Parallelogram?
(a) They are equal to each other
(b) They are complementary angle,
(c) They are supplementary angles
(d) None of these
Answer
Answer: (c) They are supplementary angles
Question 7.
The measure of each exterior angles of a regular polygon of 15 sides is
(a) 30°
(b) 45°
(c) 60°
(d) 24°
Answer
Answer: (d) 24°
Question 8.
Which of the following statement is true?
(a) All the rhombuses are squares
(b) Each square is a parallelogram
(c) Each parallelogram is a square
(d) Each trapezium is a parallelogram
Answer
Answer: (b) Each square is a parallelogram
Question 9.
The four angles of a quadrilateral are in the ratio 1 : 2 : 3 : 4. The measure of its smallest angle is
(a) 120°
(b) 36°
(c) 18°
(d) 10°
Answer
Answer: (b) 36°
Question 10.
In a parallelogram ∠A : ∠B = 1 : 2 then ∠1 is
(a) 90°
(b) 45
(c) 60°
(d) 30°
Answer
Answer: (c) 60°
Question 11.
Which of the following is a regular quadrilateral?
(a) A rhombus
(b) A square
(c) A rectangle
(d) A parallelogram
Answer
Answer: (b) A square
Question 12.
Which of the following is the sum of an exterior angle and its adjacent interior angle?
(a) A straight angle
(b) A right angle
(c) A complete angle
(d) Reflex angle
Answer
Answer: (a) A straight angle
Question 13.
Which of the following quadilaterals has two pairs of adjacent sides equal and diagonals intersecting at right angles?
(a) square
(b) rhombus
(c) kite
(d) rectangle.
Answer
Answer: (c) kite
Question 14.
Which of the following quadrilaterals has a pair of opposite sides parallel?
(a) rhombus
(b) trapezium
(c) kite
(d) rectangle.
Answer
Answer: (b) trapezium
Fill in the blanks
Question 1.
The diagonal of a rhombus bisect each other at ……………….
Answer
Answer: Right angle
Question 2.
All sides of a ………………… are equal and all angles are right angles.
Answer
Answer: Square
Question 3.
A rhombus is a quadrilateral with …………………. of equal length.
Answer
Answer: side
Question 4.
A square has sides of equal length and angles of equal measure, so it is a ………………….. polygon.
Answer
Answer: Regular Quadrilateral
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