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