Classifying Triangles by Sides and Angles/Find the missing side

Front

An obtuse triangle has one angle that measures _____________ 90°.

Back

more than

Front

Classify the triangle by its angle and sides: A triangle with angles measuring 50°, 60°, and 70°.

Back

Acute Scalene

Front

What kind of triangle is this? A triangle with one angle measuring 120°.

Back

Obtuse

Front

What type of triangle is this? A triangle with two sides of equal length and one angle measuring 40°.

Back

Isosceles

Front

Classify the triangle by its angle and sides: A triangle with angles measuring 30°, 60°, and 90°.

Back

Acute Isosceles

Front

What is the sum of the interior angles of a triangle?

Back

180°

Front

Define an equilateral triangle.

Back

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

Front

Define 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

How do you find the missing side of a right triangle using the Pythagorean theorem?

Back

If a and b are the lengths of the legs, and c is the length of the hypotenuse, then a² + b² = c².