ID Triangles & Triangle Properties

Front

What type of triangle has one angle that measures exactly 90 degrees?

Back

Right Triangle

Front

What do you call a triangle with no sides of equal length?

Back

Scalene Triangle

Front

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

Back

180 degrees

Front

If a triangle has two equal sides, what type of triangle is it?

Back

Isosceles Triangle

Front

What type of triangle has all angles less than 90 degrees?

Back

Acute Triangle

Front

Which set of angles can form a triangle? 150°, 110°, 100°; 45°, 65°, 70°; 50°, 50°, 50°; 90°, 90°, 90°?

Back

45°, 65°, 70°

Front

What is the definition of an obtuse triangle?

Back

A triangle that has one angle greater than 90 degrees.

Front

What is the relationship between the sides and angles in a triangle?

Back

The larger the angle, the longer the opposite side.

Front

What is the formula to find the area of a triangle?

Back

Area = 1/2 * base * height

Front

What is a right triangle's special property regarding its sides?

Back

It follows the Pythagorean theorem: a² + b² = c².