Sine and Cosine of a Triangle

Find the length of side b of the triangle with A = 48⁰ ,
a = 11 m,  B = 56^o

• 12 m

• 13 m

• 14 m

• 15 m

Which rule could you use?

• Sine rule

• Cosine rule

Which Law would you use?

• Sine rule

• Cosine rule

What is the length of side x?

• 130 cm

• 112 cm

• 150 cm

• 105 cm

Find the length of AB

• 10

• 8

• 6.1

• 4.9

Find the length of side AC

• 12

• 10

• 23

• 14

• 24/32
• 32/24
• 32/40
• 24/40

• 14/48
• 48/50
• 14/50
• 48/14

Find Cos(A) as a decimal rounded the the nearest ten-thousandth.

• .4706

• .875

• .8824

• .5333

If you are given the opposite side and hypotenuse, which trig function should you use?

• sine

• cosine

• tangent

• cotangent