Question

Are the following pairs of angles complementary?
(i) 10° and 80°
(ii) 37° 28' and 52° 33'
(iii) (x + 16)° and (74 – x)º
(iv) 54º and 2/5 of a right angle.
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Answer 1

Answer:

all 4 options are complementary

Answer 2

Answer:

1) 10°and 80°= 90°=complementary angles

2) 37+28+52+33=146 this is not complementary angle

3)x+16 +74

+x-x is cancel

16+74=90 this is complementary angle

4) 54+2/5 =234

this is not complementary angle