Question

4.
One angle of a right-angled triangle is 70°. Find the other acute angle.
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Answer 1

We know that, sum of angles of a triangle = 180°.

Let, the acute angle be ‘x’

∴ x + 90° + 70° = 180°

⇒ x + 160° = 180°

⇒ x = 180°- 160°

⇒ x = 20°

∴The acute angle is 20°.

Answer 2

Answer:

We know that sum of angles of a triangle = 180°.Let the acute angle be ‘x’∴ x + 90° + 70° = 180°⇒ x + 160° = 180°⇒ x = 180°-160°⇒ x = 20°∴ The acute angle is 20°

Step-by-step explanation:

One of the acute angles of a right triangle is `58^0` , find the other acute angle.