NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 6: Triangles - Multiple Choice Questions

Question 2

Question.  2

Triangle DEF of Fig. 6.6 is a right triangle with ∠E = 90°. What type of angles are ∠D and ∠F?

(a)

(a) They are equal angles

(b)

(b) They form a pair of adjacent angles

(c)

(c) They are complementary angles

(d)

(d) They are supplementary angles

Detailed Answer with Explanation:

In a right triangle, the two non-right angles add up to \(90^\circ\). Hence, ∠D and ∠F are complementary.