Question

find complementary angle of 2x + 5
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Answer 1

Answer:

(2x+5)+x = 90°

2x+x +5 = 90°

3x+5 = 90°

3x = 90-5

3x = 85

x = 85/3

x = 28 (Approximate)

Hence the complementary angle of 2x+5 is 28°

Answer 2

Answer:

2x+5

We know that complementary angles are of 90 °

So,

2x+5=90°

2x=85°

$x = \frac{85}{2}$

x=42.5°

Hope it hèlps