Question

pls solve it pls in 17 min ​

Answer 1

Answer:

given,b=a+c

a+b+c=180degree(linear pairs)

a+c+a+c=180degree (as b=a+c)

2(a+c)=180degree

a+c=180degree/2

a+c=90degree

hence,b=90degree.

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Answer 2

Answer:

a + b + c = 180⁰

given, b = a + c

putting the value of b

We get, a + a + c + c = 180⁰

2a + 2c = 180⁰

2(a+ c) = 180⁰

a + c = 90⁰

then, b = 90⁰

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