Geometry A 3.1 Classify Triangles

Front

What is an equiangular triangle?

Back

A triangle where all three angles are equal.

Front

What is an acute triangle?

Back

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

Front

What is an obtuse triangle?

Back

A triangle that has one angle greater than 90 degrees.

Front

What is a right triangle?

Back

A triangle that has one angle equal to 90 degrees.

Front

What is a scalene triangle?

Back

A triangle where all three sides are of different lengths.

Front

What is an isosceles triangle?

Back

A triangle that has at least two sides of equal length.

Front

What is an equilateral triangle?

Back

A triangle where all three sides are of equal length.

Front

If x = 1.5, what is the length of the longest side in a triangle with sides 5x, 6x, and 7x?

Back

The longest side is 12.5.

Front

If a triangle is equilateral and each side is 21, what is the value of y if y represents the length of each side?

Back

y = 8, sides = 21.

Front

What is the sum of the angles in any triangle?

Back

The sum of the angles in any triangle is 180 degrees.