Question

Triangle DEF of Fig. 6.6 is a right triangle with ∠E = 90°. What type of angles are ∠D and ∠F?Immersive Reader
options....
(1) they are equal angles
(2) they form a pair of adjacent angels
(3) they are complementary angles
(4) they are supplementary angles​

Answer 1

Answer:

) They are complementary angles.

Answer 2

Answer:

(3) they are complementary angles

Step-by-step explanation:

All angles of a triangle add up to 180°

If one angle is 90°, 180° - 90° = 90°

Complementary angles are those which add up to 90°

So, the answer is (3).