Q. 2
Triangle DEF of Fig. 6.6 is a right triangle with ∠E = 90°.
What type of angles are ∠D and ∠F?
A. They are equal angles
B. They form a pair of adjacent angles
C. They are complementary angles
D. They are supplementary angles
Answer :
Given: Δ DEF is a right triangle with ∠E = 90°
Formula Used/Theory:-
Sum of all angles of triangle is 180°
In Δ DEF
∠D + ∠E + ∠F = 180°
∠D + 90° + ∠F = 180°
∠D + ∠F = 180° - 90°
∠D + ∠F = 90°
∴ Angle D and F are complimentary angles
As their sum is 90°
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