Trig Quiz #1

Master trig! Solve right triangle problems with SOHCAHTOA.

Vocabulary Match the correct term to its definition. Reference Angle The focus angle that is NEVER 90 degrees Hypothenuse The longest side of a right triangle. ALWAYS across from 90 degrees. Opposite The side across from the reference angle Adjacent The side next to the reference angle that is NOT the hypothenuse. SOHCAHTOA The acronym that is used to help remember the ratio of the sides in a right triangle Sine opposite Cosine adjacent Tangent opposite Identify the following. Click on each box and type in the name of the side. RA for reference angleO for OppositeA for AdjacentHyp for Hypothenuse RA O A Hyp Identify the following. Click on each box and type in the name of the side. RA for reference angleO for OppositeA for AdjacentHyp for Hypothenuse RA O A Hyp Click HERE to be taken to the Desmos calculator. You CANNOT use your phone calculator. Which trig function (SOHCAHTOA) are we going to use to solve for x? SOH CAH TOA Using Cosine (CAH), which is the correct set up? Cos(35)= x Cos(35)=6 What is your answer? (round to the nearest hundredth) 4.92 7.32 Which trig function (SOHCAHTOA) are we going to use? SOH CAH TOA Using Sine (SOH), which is the correct set up? Sin(35)=x Sin(35)=13 What is your answer? (round to the nearest hundredth) 22.65 17.46 Which trig function (SOHCAHTOA) are we going to use? SOH CAH TOA Using Tangent (TOA), which is the correct set up? Tan(55)=x Tan(55)=7 What is your answer? (round to the nearest hundredth) 9.99 4.90 Bonus! This triangle is isosceles. What is the value of x? Submit a screenshot of your work here.