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

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

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

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°.