Question

Which best describes triangle ABC?

A) A right triangle that is also isosceles

B) A right triangle that is also equilateral

C) An acute triangle that is also scalene

D) An obtuse triangle that is also scalene

E) An obtuse triangle that is also isosceles

Answer 1

B

Explanation:

An isoceles triangle has two equal sides. Based on the picture, sides AC and AB have equal length (as given by the lines in the middle of sides AC and AB).

The triangle is also a right triangle (usually the square in the top-left corner is the dead giveaway that whether it is a right triangle).