Question

In the adjoining figure , if b°= a° + c° , find b​

Answer 1

Answer:

B=90°

Step-by-step explanation:

Answer 2

Answer:

b=90°

Step-by-step explanation:

as all the 3 angles lie on a line.

so, total sum of a,b,c=180°

=>a+b+c=180°

=>(a+c)+b=180°   ......(1)

also, b=a+c

so, (1) becomes

=>b+b=180°

=>2b=180°

=>b=90°

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