7.1 Solving Missing Side Length Warm-Up (Digital Version)

7.1 Solving Missing Side Length Warm-Up (Digital Version)

By Melodie Hunt

To Label Sides of a Triangle:

• ​Highlight the angle you are referencing.

• Label the opposite leg first (it's across from the angle you highlighted).

• Label the hypotenuse next - it's opposite the right angle and is always the longest side.

• ​Label the third side adjacent.​

Multiple Choice

What is the length of the hypotenuse?

• 7

• 24

• 25

Multiple Choice

What is the length of the side opposite of C?

• 7

• 24

• 25

Multiple Choice

What is the length of the adjacent leg to C?

• 7

• 24

• 25

How to use Trig Functions to find missing side lengths.

• Circle angle

• Label sides that have values

• Decide which trig function to use

• Solve the equation

Example:

Multiple Choice

Find the length of the missing side x...

Round your answer to 1 decimal place.

• 8.3 cm

• 16.7 cm

• 11.8 cm

• 8.4 cm

Multiple Choice

Find the length of the missing side x...

Round your answer to 1 decimal place.

• 3.8 cm

• 28.8 cm

• 3.9 cm

• 3.6 cm

Fill in the Blanks

Solve for x. Round to the nearest tenth if needed.