Triangle Area- Trigonometry

Which formula below may used to find the area of a triangle? May select multiple answers.

• 1/2 b*cSInA

• 1/2 b*h

• 1/2 s*a*n

• a²+b²=c2

Find the area of the triangle. Round answers to two decimal places. 

• 2.99
• 2.50
• 3.99
• 4.01

Find the area of the triangle. Round answers to two decimal places. 

• 2.83
• 2.75
• 3.41
• 1.98

Find the area of the triangle. Round answers to two decimal places. 

• 1.71
• 1.86
• 2.41
• 1.65

What is the area of this triangle?

• 12 sq. cm.
• 6 sq. cm.
• 12 cm
• 6 cm

Find the area:

• 40 yd
• 40 yd²
• 80 yd²
• 18 yd²