Question

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Answer 1

Answer:

D) 135°

Step-by-step explanation:

let, complement angle =x

and supplement angle =3x

sum of angles=180°

$3x + x = 180 \\ 4x = 180 \\ x = 180 \div 4 \\ x = 45$

$suplement = 3x \\ = 3 \times x \\ = 3 \times 45 \\ = 135$