One angle of a right angled triangle is 70°. Find the other acute angle.
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.
One angle of a right-angled triangle is 70°. Find the other acute angle.
We know that,
Sum of all the angles in a triangle =180°
Let us consider the acute angle as x
Hence,
x + 90° + 70° = 180°
x + 160° = 180°
x = 180° – 160°
We get,
x = 20°
Therefore, the acute angle is 20°
Sum of all the angles in a triangle =180°
Let us consider the acute angle as x Hence,
x + 90° + 70° = 180°
x + 160° = 180°
x = 180° – 160° We get, x = 20°
Therefore, the acute angle is 20°