Question

20. Two angles whose measures are a & bare such that 2a - 3b = 60°, then the value of
they forms linear pair
a) 1.6
b) 2
c) 3.1
d) 4.5​

Answer 1

Answer:

120°,60°

Step-by-step explanation:

2a-3b=60° (1)

a+b = 180° so

3a+ 3b= 540° (2)

(1)+(2)

5a=600°

a=120°

so b=60°

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