Class 7 Chapter 5 Exercise 5.1 & 5.2 Lines and Angles CBSE New Syllabus NCERT

Class 7 Chapter 5 Exercise 5.1, Exercise 5.2, Lines and Angles, CBSE, New Syllabus, NCERT, Exercise 5.1 Question no 1 Find the complement of each of the following angles, Exercise 5.1 Question no 2 Find the supplement of each of the following angles, Exercise 5.1 Question no 3 Identify which of the following pairs of angles are complementary and which are supplementary, Exercise 5.1 Question no 4 Find the angle which is equal to its complement, Exercise 5.1 Question no 5 Find the angle which is equal to its supplement, Exercise 5.1 Question no 6 n the given figure, ∠1 and ∠2 are supplementary angles. If ∠1 is decreased, what changes should take place in ∠2 so that both the angles still remain supplementary, Exercise 5.1 Question no 7 an two angles be supplementary if both of them are: (i)acute? (ii)obtuse? (iii)right? Exercise 5.1 Question no 8 An angle is greater than 45º. Is its complementary angle greater than 45º or equal to45º or less than 45º? Exercise 5.1 Question no 9 Fill in the blanks:(i)If two angles are complementary, then the sum of their measures is _______. (ii)If two angles are supplementary, then the sum of their measures is ______.(iii)If two adjacent angles are supplementary, they form a Exercise 5.1 Question no 10 In the adjoining figure, name the following pairs of angles.(i)Obtuse vertically opposite angles(ii)Adjacent complementary angles(iii)Equal supplementary angles(iv)Unequal supplementary angles(v)Adjacent angles that do not form a linear pair Exercise 5.2 Question no 1 State the property that is used in each of the following statements?(i)If a || b, then ∠1 = ∠5.(ii)If ∠4 = ∠6, then a || b.(iii)If ∠4 + ∠5 = 180°, then a || b, Exercise 5.2 Question no 2 In the adjoining figure, identify(i)the pairs of corresponding angles.(ii)the pairs of alternate interior angles.(iii)the pairs of interior angles on the same side of the transversal.(iv)the vertically opposite angles Exercise 5.2 Question no 3 In the adjoining figure, p || q. Find the unknown angles, Exercise 5.2 Question no 4 Find the value of x in each of the following figures if l || m, Exercise 5.2 Question no 5 n the given figure, the arms of two angles are parallel. If ∠ABC = 70º, then find (i)∠DGC(ii)∠DEF Exercise 5.2 Question no 6 n the given figures below, decide whether l is parallel to m.