HW 4.1

Front

What are the classifications of triangles based on angles?

Back

Triangles can be classified as Acute (all angles less than 90°), Right (one angle equal to 90°), or Obtuse (one angle greater than 90°).

Front

What are the classifications of triangles based on sides?

Back

Triangles can be classified as Equilateral (all sides equal), Isosceles (two sides equal), or Scalene (no sides equal).

Front

What is an Acute Isosceles triangle?

Back

An Acute Isosceles triangle has two equal sides and all angles less than 90°.

Front

What is a Right Scalene triangle?

Back

A Right Scalene triangle has one angle equal to 90° and all sides of different lengths.

Front

What is an Acute Scalene triangle?

Back

An Acute Scalene triangle has all angles less than 90° and all sides of different lengths.

Front

What is a Right Isosceles triangle?

Back

A Right Isosceles triangle has one angle equal to 90° and two equal sides.

Front

How do you determine if a triangle is Isosceles?

Back

A triangle is Isosceles if at least two of its sides are of equal length.

Front

How do you determine if a triangle is Scalene?

Back

A triangle is Scalene if all three sides are of different lengths.

Front

What is the sum of the angles in any triangle?

Back

The sum of the angles in any triangle is always 180°.

Front

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

Back

In a triangle, the largest angle is opposite the longest side, and the smallest angle is opposite the shortest side.