Question

If one angle of a triangle is equal to the sum of the other two angles, the triangle is

• A. Obtuse
• B. Acute
• C. Right
• D. Equilateral

Answer 1

The correct option is C

Right

Explanation:

Apply angle sum property of triangle:

Given:$a=b+c$

$$\begin{gathered} a=b+c \\ a+b+c=180° \\ a+a=180° \\ a=90° \end{gathered}$$

Hence, the triangle is a right triangle.