Labeling Right Triangles

Front

What is the definition of a right triangle?

Back

A right triangle is a triangle that has one angle measuring 90 degrees.

Tags

CCSS.4.G.A.2

Front

In a right triangle, what is the hypotenuse?

Back

The hypotenuse is the longest side of a right triangle, opposite the right angle.

Front

What are the two other sides of a right triangle called?

Back

The two other sides are called the opposite side and the adjacent side.

Tags

CCSS.HSG.SRT.C.6

Front

How do you identify the opposite side in relation to a given angle in a right triangle?

Back

The opposite side is the side that does not touch the angle in question.

Front

How do you identify the adjacent side in relation to a given angle in a right triangle?

Back

The adjacent side is the side that touches the angle in question, excluding the hypotenuse.

Tags

CCSS.HSG.SRT.C.6

Front

What is the relationship between the sides of a right triangle and the Pythagorean theorem?

Back

The Pythagorean theorem states that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides (a² + b² = c²).

Tags

CCSS.8.G.B.8

Front

What is the sine function in relation to a right triangle?

Back

The sine function of an angle is the ratio of the length of the opposite side to the length of the hypotenuse (sin(θ) = opposite/hypotenuse).

Tags

CCSS.HSG.SRT.C.6

Front

What is the cosine function in relation to a right triangle?

Back

The cosine function of an angle is the ratio of the length of the adjacent side to the length of the hypotenuse (cos(θ) = adjacent/hypotenuse).

Tags

CCSS.HSG.SRT.C.6

Front

What is the tangent function in relation to a right triangle?

Back

The tangent function of an angle is the ratio of the length of the opposite side to the length of the adjacent side (tan(θ) = opposite/adjacent).

Tags

CCSS.HSG.SRT.C.6

Front

What does it mean for the hypotenuse to be 'across from the right angle'?

Back

It means that the hypotenuse is the side opposite the right angle in a right triangle.