Classifying a triangles by its sides and angles

Front

What is an equilateral triangle?

Back

A triangle with all three sides of equal length and all three angles measuring 60°.

Front

Define an isosceles triangle.

Back

A triangle with at least two sides of equal length and the angles opposite those sides are equal.

Front

What characterizes a scalene triangle?

Back

A triangle with all sides of different lengths and all angles of different measures.

Front

What is a right triangle?

Back

A triangle that has one angle measuring exactly 90°.

Front

Define an acute triangle.

Back

A triangle where all three angles are less than 90°.

Front

What is an obtuse triangle?

Back

A triangle that has one angle measuring more than 90°.

Front

How do you classify a triangle with angles measuring 30°, 60°, and 90°?

Back

It is a right triangle.

Front

What type of triangle has angles measuring 45°, 45°, and 90°?

Back

It is a right isosceles triangle.

Front

If a triangle has sides measuring 5 cm, 5 cm, and 8 cm, how is it classified?

Back

It is an isosceles triangle.

Front

What type of triangle is formed by angles measuring 70°, 60°, and 50°?

Back

It is an acute triangle.