Question

Isaac and Betty are describing two triangles.

Isaac says, "My triangle has a 90� angle."
Betty says, "My triangle has all sides and all angles equal."

Which triangles did Isaac and Betty describe?

Answer 1

Isaac described an equiangular triangle, and Betty described a scalene triangle.

Isaac described an isosceles triangle, and Betty described a right angle triangle.

Isaac described an equiangular triangle, and Betty described an isosceles triangle.

Isaac described a right triangle, and Betty described an equilateral triangle.

Answer 2

ignor the thing next to the 90

Answer 3

I'd suggest you look up the four descriptors, "scalene," "right angle," "isosceles" and "equilateral." Doing that would quickly help you choose the correct answer from the four possible choices.