Finding Areas of a Triangle

Find the area of the triangle:

• 48 cm²

• 22 cm²

• 24 cm²

• 36 cm²

What is the formula for the area of this triangle?

• A = ½absinB

• A = ½bcsinB

• A = ½absinC

• A = ½acsinA

Which equation would find the area of the triangle?

• A = ½(8)(10)(cos43°) cm²

• A = ½(8)(10)(tan43°) cm²

• A = (8)(10)(sin43°) cm²

• A = ½(8)(10)(sin43°) cm²

For which triangles can the area be found using the formula A = ½absinC

• triangles A, B, and E

• triangles B and C

• triangles E and F

• triangles A and E

Find the area of the triangle.

• 17.3 cm²

• 34.5 cm²

• 7.0 cm²

• 28.4 cm²

Find the area of the triangle.

• 19.17 cm²

• 38.33 cm²

• 9.58 cm²

• 12.46 cm²

Which formula will give the area of the triangle?

• A = ½(8)(10)cos41° cm²

• A = ½(8)(10) cm²

• A = ½(8)(10)sin41° cm²

• A = (8)(10)sin41° cm²

Find the area of the triangle.

• 57.4 cm²

• 58.9 cm²

• 29.5 cm²

• 28.7 cm²

Solve for b.

• 6.59 cm

• 7.22 cm

• 7.39 cm

• 8.12 cm

Solve for the missing angle y.

• 24.8°

• 57.1°

• 69.2°

• 85.3°