10.5 - Trigonometry and Triangle Area

Which side is opposite angle x?

• 1
• 2
• 3

What is the ratio for Tangent

• Opp/Adj
• Adj/Opp
• Opp/Hyp
• Hyp/Opp

What is the correct equation to solve for x?

• tan (45) = x/13
• cos (45) = x/13
• sin (45) = 13/x
• sin (45) = x/13

Use inverse trig ratios (SOH CAH TOA) to solve for the missing angle

• 49°
• 57°
• 45°
• 54°

Find the length of the missing side x...

Round your answer to 1 decimal place.

• 15.1 cm

• 15.2 cm

• 10.1 cm

• 10.2 cm

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

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