Triangles

Front

An OBTUSE triangle has _____________.

Back

one angle greater than 90 degrees

Front

An ACUTE triangle has _________________.

Back

all angles less than 90

Front

An ISOSCELES triangle has _____________.

Back

2 equal sides

Front

A triangle's sides measure 15 inches by 10 inches by 8 inches. It has one angle that measures 120 degrees. Classify the triangle by its sides and angles.

Back

Obtuse, scalene

Front

An obtuse triangle will always have _____ obtuse angles.

Back

One

Front

What is a SCALENE triangle?

Back

A triangle with no equal sides.

Front

What is an EQUILATERAL triangle?

Back

A triangle with all three sides equal.

Front

What is the sum of the angles in any triangle?

Back

180 degrees.

Front

What is a RIGHT triangle?

Back

A triangle with one angle equal to 90 degrees.

Front

How many sides does a triangle have?

Back

Three sides.