NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 5: Lines And Angles - Problems and Solutions

Question 100

Question. 100

100. In Fig. 5.53, find the value of ∠BOC, if points A, O and B are collinear.

Answer:

40°

Detailed Answer with Explanation:

Using given expressions, ∠AOD + ∠BOC = 180°. Solving equations gives ∠BOC = 40°.