Question

I am a 2-dimensional shape with twosides perpendicular. I have an angle sumof 180 degrees. What am I?A) a squareB) a right triangleC) an isosceles triangleD) an equilateral triangle

Answer 1

Firstly, the sum of the angles in a triangle is 180 degrees. Since the angle sum is 180 degrees, then it is a triangle.

Secondly, perpendicular sides form 90 degrees. This means that one of the angles in the triangle is 90 degrees. In right angle triangles, one of the angles is 90 degrees.

Thus, the correct option is B