If a, b, c are the sides of a triangle, and a2 + b2 + c2 = bc + ca + ab, then the triangle is:

If a, b, c are the sides of a triangle, and a² + b² + c² = bc + ca + ab, then the triangle is:

A.
equilateral
B.
isosceles
C.
right angled
D.
obtuse angled

Correct Answer : A

Realated Questions

In the figure, AB = BC = CD = DE = EF = FG = GA. Then DAE is approximately:
The length of the common chord of two circles of radii 15 cm and 20 cm, whose centres are 25 cm apart, is (in cm):
The area of the triangle whose vertices are (a, a), (a + 1, a + 1), (a + 2, a) is :