Lines and Angle Class 9 Worksheet Maths

Multiple Choice Questions

Q1: Find the value of x
(a) 98º
(b) 100º
(c) 108º
(d) 96º

Q2: A pair of angles is called linear pair if the sum of two adjacent angles is?
(a) 180º
(b) 90º
(c) 270º
(d) 360º

Q3: Find the value of x, y and z

(a) x = 110º , y = 70º, z = 80º
(b) x = 70º , y = 110º, z = 60º
(c) x = 70º, y = 100º, z = 70º
(d) x = 70º, y = 110º, z = 70º

Q4: An exterior angle of the triangle is 110º. And its two opposite interior angles are in the ratio 5:6. What are the values of those angles?
(a) 50º, 60º
(b) 25º, 30º
(c) 35º, 42º
(d) 40º, 48º

Q5: Lines l || k and m || n. Find the value of angle z
(a) 45º
(b) 60º
(c) 70º
(d) 50º

Q6:

Find the value of x
(a) 67º
(b) 71º
(c) 57º
(d) None of these

Q7: The side BC, AB and AC of the triangle ABC are produced in order forming exterior angles ∠ACD = x, ∠BAE = y and ∠CBF = z then the value of 2x + 2y + 2z is
(a) 180°
(b) 360°
(c) 540°
(d) 720°

Q8: The angles of the triangles are in the ratio 1 : 2 : 3. Then the triangle is
(a) scalene
(b) obtuse angled
(c) acute angled
(d) right angles

True or False

Q1: Pairs of vertically opposite angles is always equal

Q2: The sum of the angles of a triangle is 180º

Q3: If the sum of two adjacent angles is 45º, then two adjacent angles are acute angles

Q4: If a line is perpendicular is one of two parallel lines, then it is also perpendicular to the other

Q5: Two lines are intersected by the transversal, and then the corresponding angles are equal

Q6: Can we have a triangle where all the interior angles are more than 60º

Q7: Sum of two complimentary angles is equal to 90º

Q8: Sum of all the exterior angles of any polygon is always 360º

Fill in the blanks 

Q1: Sum of two supplementary angles is ______.

Q2: Two lines parallel to the same line is ____ each other.

Q3: An acute angle is always less than _____.

Q4: Angles forming a linear pair are ______.

Q5: If one angle of triangle is equal to the sum of other two angles, then the triangle is ______.

Q6: If two straight lines intersect, the adjacent angles are ______.

Table Type Question

Short Answer Type Questions

Q: Write the type of angles
(i)
(ii)
(iii)
(iv)
(v)
(vi)
(vii)

The solutions of the worksheet "Worksheet Solutions: Lines and Angle"