06. Worksheet: Lines & Angles

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 = 70ºQ4: 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, 48ºQ5: Lines l || k and m || n. Find the value of angle z(a) 45º

(b) 60º

(c) 70º

(d) 50ºQ6: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 QuestionShort Answer Type Questions

Q: Write the type of angles

(i) 

(ii) 

(iii) 

(iv) 

(v) 

(vi) 

(vii)