If an angle of a right-angled triangle is 35°, then find the other angles.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 90° and 55°.
One angle in a right-angled triangle = 35°
One angle in a right-angled triangle is 90°
And the sum of all angles of a triangle = 180°
Let the third angle of a right-angled triangle be x°.
So, 90° + 35° + x = 180°
⇒ x = 180 - 125
⇒ x = 55
Hence the other two angles of a right-angled triangle are 90° and 55°.