Question

find the measure of an angle which is four times its supplement​

Answer 1

Answer:

45°

Step-by-step explanation:

let it be x

.4×x=180°

[supplementary=180°]

4x=180°

x=180°÷4

x=45°

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Answer 2

Answer:

let that angle be x

then,

(x+4x)=180°

5x=180°

x=36°

that number be =4×36

=144°