Find the Missing Side or Angle

Front

What is the Pythagorean Theorem?

Back

a² + b² = c², where c is the hypotenuse of a right triangle.

Front

How do you find the length of a side in a right triangle using sine?

Back

Use the equation: Sin(θ) = opposite/hypotenuse.

Front

How do you find the length of a side in a right triangle using cosine?

Back

Use the equation: Cos(θ) = adjacent/hypotenuse.

Front

How do you find the length of a side in a right triangle using tangent?

Back

Use the equation: Tan(θ) = opposite/adjacent.

Front

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

Back

The sum of the angles in a triangle is always 180°, and in a right triangle, one angle is 90°.

Front

If one angle of a right triangle is 30°, what is the ratio of the sides?

Back

The ratio of the sides opposite 30°, 60°, and 90° degrees is 1:√3:2.

Front

What is the sine of 40°?

Back

Approximately 0.6428.

Front

What is the cosine of 40°?

Back

Approximately 0.7660.

Front

What is the tangent of 40°?

Back

Approximately 0.8391.

Front

How do you estimate the height of an object using a right triangle?

Back

Use the formula: height = distance * tan(angle).