Question

# Given a right triangle. One of the angles is 20^circ. Find the other 2 angles.

Analytic geometry
Given a right triangle. One of the angles is $$\displaystyle{20}^{\circ}$$. Find the other 2 angles.

2021-02-14

Since it's a right triangle, one of the other angles is $$\displaystyle{90}^{\circ}$$. The sum of all angles in a triangle is always 180. Let the third angle be x:
$$20+90+x=180$$
$$x=180-90-20$$
$$\displaystyle{x}={70}^{\circ}$$
$$\displaystyle{90}^{\circ}{\quad\text{and}\quad}{70}^{\circ}$$