Question

identify which of the following pairs of angles are complementary (a) 65degree,115degree (b) 63degree,27degree (c) 112degree,68degree(d) 130degree50degree​

Answer 1

QUESTION--

Identifying pairs of complementary angles.

ANSWER--

Complementary angles = two angles which sum= 90

(a) 65 degree and 115 degree

Sol. 115+65= 180 which is not equal to 90

It is not a complementary angle (it is a supplementary angles)

(b) 63 and 27

Sol. 63+27=90

It is a complementary angle.

(c) 112+68=180

Not a complementary angle

(d) 130 and 50

130+50=180

not a complementary angle

ANS- (b) 63 and 27

I hope it helps  

Answer 2

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QUESTION:

identify which of the following pairs of angles are complementary

(a) 65degree,115degree

(b) 63degree,27degree

(c) 112degree,68degree

(d) 130degree50degree

ANSWER:

complementary angles sum is 90°

a) 65° + 115° = 180°

b) 63° + 27° = 90°

c) 112° + 68° = 180°

d) 130°+ 50° = 180°

so option B is correct