HT2- Yr 10- Sunday -Feb 7- Trigonometry

Find the missing value.

Round to the nearest tenths. 2 marks

• 52.1^o

• 30.2^o

• 12.1^o

• 22.1^o

Find the missing value.

Round to the nearest tenths. 2 marks

• 64.2 in

• 45.3 in

• 25.6 in

• 36.6 in

You are on a ship at sea. You see a lighthouse in the distance. You know the lighthouse is 175 feet tall. You measure the angle of elevation to the top of the lighthouse at 5^o. How far are you from the bottom of the lighthouse? 3 marks

• 1200.3 Feet

• 4000.3 Feet

• 2000.3 Feet

• 2017.3 Feet

Set up the problem. 1 marks

• cos(47) = x/28

• cos(47) = 28/x

• tan(47) = x/28

• sin(47) = x/28

What is the ratio for Tangent 1 marks

• Adj/Opp

• Opp/Hyp

• Opp/Adj

• Hyp/Opp

Solve for x. 2 marks

• 12.6

• 23.4

• 45.3

• 29.75

Find the measure of the indicated angle (?) round to 1 decimal place. 2 marks

• 55.2

• 24.1

• 15.8

• 27.9

What is the measure of angle A? 3 marks

• 78 degrees

• 36 degrees

• 89 degrees

• 45 degrees

What is the area of the provided triangle?4 marks

• 62.57

• 36.18

• 66.24

• 26.12

Find the missing side x. 3 marks

• 45.1 cm

• 27.8cm

• 24.6 cm

• 78.9 cm