If a right triangle has an angle that is 65°, what is the third angle in the triangle? (1

Question

15°

25°

35°

45°

Answer 1

In a right triangle, one of the angles is always 90°. The sum of the angles in any triangle is 180°.

If one angle is 65° and the right angle is 90°, we can find the third angle by using the following equation:

\[ \text{Third angle} = 180° - (90° + 65°) \]

Calculating that gives:

\[ \text{Third angle} = 180° - 155° = 25° \]

So, the third angle in the triangle is 25°.