Area of a Triangle using trigonometry Practice quiz.

• 10.1
• 10.0
• 10.9
• 8.86

If the sides of a triangle are 8, 8, and 8, what is the area?

• 8

• 15.58

• 27.71

• 62.91

Find the area of the triangle. Round your answer to 1 decimal place..

• 16.8 cm²

• 15.7 cm²

• 11.5 cm²

• 11.4 cm²

Find the length of the missing side for the triangle shown.

Give your answer to one decimal place.

Find the length of the missing side for the triangle shown.

Give your answer to one decimal place.

Find the length of the missing side for the triangle shown.

Give your answer to one decimal place.

Find the size of the missing acute angle.

Give your answer to one decimal place.

Find the size of the missing acute angle.

Give your answer to one decimal place.

Find the size of the missing acute angle.

Give your answer to one decimal place.

Which of the following is a formula that can be used to find the area of a triangle?