Practice Page 1

 Q1. Fill in the blanks: a.   A quadrilateral has ______________ angles. b.   A square has all its side ______________. c.   A trapezium with its non-parallel sides equal is called _______________________. d.   Each angle of a rectangle or square is equal to ___________. e.   A square is a rectangle in which all sides are equal. f.    Sum of the angles of a quadrilateral is ______________ Q2. A quadrilateral has three angles equal to 60°, 75° and 120°. Find its unknown angle. Q3. In a quadrilateral EFGH, ∠E = ∠F = 65° and ∠G = 120°, find ∠H. Q4. If the sum of 3 angles of a quadrilateral is 280°, find its fourth angle.

Practice Page 2

 Q1. Fill in the blanks: g.   Quadrilateral means ____________ sides. h.   Square is a _____________ in which all sides are equal i.     A line segment joining a pair of opposite vertices is called a _________________. j.    Each angle of a rectangle is equal to ___________. k.   A rhombus is sometimes called a ____________________. l.     The interior angles of a quadrilateral add up to ______ degrees. Q2. Find the measure of the missing angles in a parallelogram, if ∠A = 55° Q3. In a quadrilateral ABCD, ∠A = 105°, ∠B = 95°, ∠C= 70. Find ∠D.