## Understanding Quadrilaterals (MCQs)

**1. A simple closed curve made up of only _____________ is called a polygon .**

(a) curves

(b) line segments

(c) lines

(d) closed curves

**2. A polygon with minimum number of sides is**

(a) Pentagon

(b) Square

(c) triangle

(d) angle

**3. Polygons that have no portions of their diagonals in their exteriors are called**

(a) Squares

(b) triangles

(c) convex

(d) concave

**4. Polygons that have any portions of their diagonals in their exteriors are called**

(a) Squares

(b) triangles

(c) convex

(d) concave

**5. All the sides of a regular polygon are _________________.**

(a) Parallel

(b) equal in length

(c) not parallel

(d) not equal

**6. All the angles of a regular polygon are of ________________.**

(a) 90°

(b) 60°

(c) equal measure

(d) equal length

**7. Sum of all interior angles of a polygon with (n) sides is given by**

(a) (n – 2) × 180°

(b) n – 2 × 180°

(c) (n + 2) × 180°

(d) n + 2 × 180°

**8. Maximum number of right angles in a right angled triangle are**

(a) 2

(b) 1

(c) 3

(d) 0

**9. Sum of all interior angles of a parallelogram is**

(a) 180°

(b) 360°

(c) 540°

(d) 240°

**10. The angle sum of all interior angles of a convex polygon of sides 7 is**

(a) 180°

(b) 540°

(c) 630°

(d) 900°

Answers:

1: (b) line segments

2: (c) triangle

3: (c) convex

4: (d) concave

5: (b) equal in length

6: (c) equal measure

7: (a) (n – 2) × 180°

8: (b) 1

9: (b) 360°

10: (d) 900°