Question

If A is 20 and B is 60 then what is C with reason?​

Answer 1

Step-by-step explanation:

Incomplete Question?

If A,B,C are in proportion.

Then,

A : B : C

20 : 60 : C

In this case,

C = 180

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Answer 2

Answer:

In a triangle ABC

A+B+C=180°

20+60+C=180°

80+C=180°

C=180°-80°

C=100°