Area of Triangles Using Trig

Find the area to the nearest tenth

• A

• B

• C

• D

What is this Triangle's area?

• 8.0

• 17.9

• 80.0

• 8.97

There is a special triangle area equation we have not looked at yet. If you know two sides of a triangle and the angle between them, you can use this formula Area = (1/2)*side1*side2*sin(<). What is the area of this triangle?

• 62.3 units²

• 124.6 units²

• 77.0 units²

• 100 units²

To find the height of this triangle using BC as the base, which equation could you use to find the height?

• cos(43) = 15/h

• sin(43) = h/15

• tan(52) = h/15

• cos(85) = h/15

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 area of the triangle.

• 68.22

• 81.98

• 57.40

• 92.35

Find the area of the triangle.

• 12.73

• 11.89

• 7.35

• 15.37

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

• 24.9 cm²

• 25 cm²

• 49.8 cm²

• 49.9 cm²

in triangle ABC, the measure of angle c = 30 and a = 8.  If the area of the triangle is 12, what is the length of side b?

• 6

• 8

• 3

• 4

Hello World

• 14529.97

• 15378.93

• 29059.94

• 9435.87