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Sai International School
Class-VII
MATHEMATICS
Ch- 5- Lines and Angles-
Work Sheet- Ans
Q1. State the property that is used in each of the
following statements?
(i) If a || b, then ∠1 = ∠5.
Answer : (i) Corresponding angles property
(ii) If ∠4 = ∠6, then a || b.
Answer : (i) Alternate interior angle property
(iii) If ∠4 + ∠5 = 180°, then a || b.
(iv) Answer : Co interior angles are Supplementary
Q2. In the adjoining figure, identify
(i) the pairs of corresponding angles.
Answer: ∠1 and ∠5, ∠2 and ∠6, ∠3 and ∠7, ∠4 and ∠8.
(ii) the pairs of alternate interior angles.
