If one angle of a triangle is equal to the sum of the other two angles, then the triangle is
A. An isosceles triangle
B. An obtuse triangle
C. An equilateral triangle
D. A right triangle
Answer:C
If one angle of a triangle is equal to the sum of the other two angles, then the triangle is
A. An isosceles triangle B. An obtuse triangle C. An equilateral triangle D. A right triangle