Question

an angle is 30° less than three time its complement. Find the angle

Answer 1

Answer:

Let the ∠x be the required angle

Thus, according to the question

180−x=3(90−x)

=>180−x=270−3x

=>2x=90

=>x=45

Step-by-step explanation:

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Answer 2

Answer:

60°

Step-by-step explanation:

Let the angle be x.

Complement = (90-x)°

According to Question,

x+30° = 3(90-x)°

=> x+30° = 270°-3x

=> x+3x = 270°-30°

=> 4x = 240°

=> x = 240/4

=> x = 60°

Hence, the angle is 60°.