Introduction to Trigonometry and Law of Sines

In a right angled ΔABC, right angled at B, if ∠A = ∠C = 45°, then find
tan A + cot A

• 2

• 1

• 0

• None of the above

Tags

CCSS.HSG.SRT.C.7

Say 'TRUE' or 'FALSE'
If A and B are acute angles such that Sin A = Sin B, then A = B

• TRUE

• FALSE

Tags

CCSS.HSG.SRT.C.7

Choose the correct statement

• Sin 30° > Cos 30°

• cos 30° > Sin 30°

Tags

CCSS.HSG.SRT.C.7

Given that sin α = ½ and cos β = ½, then the value of α + β is ______

• 90°

• 60°

• 30°

• 0°

Tags

CCSS.HSG.SRT.C.7

Which Law would you use?

• Law of Sines

• Law of Cosines

• Law of the Jungle

• Law of Gravity

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Use law of Sines to find side c.

Round your answer to the nearest hundredth

Mathematical Equivalence

OFF

Find the length of side AB. m<C = 53 degrees. m<B = 44 degrees. AC = 7.

• 8.0

• 8.8

• 9.2

• 10.3

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Two stakes are holding a small blimp in place. Stake A measures an angle of elevation of 49^o and Stake B measures an angle of elevation of 58^o. If the string attached to Stake A has a length of 148 feet, what is the length of the string attached to Stake B?

• 152.7 feet

• 166.3 feet

• 157.3 feet

• 131.7 feet

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Solve for a.

• 28

• 56

• 22

• 45

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Solve the triangle, round to the nearest tenth.

• angle H= 15°, f= 55.5, g= 64.5

• angle H= 113° f= 55.5, g= 64.5

• angle H= 53°, f= 64.5, g= 55.5

• angle H=15°, g= 65, f= 56

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11