Introduction To Trigonometric Ratios Page 2

Date:_____________________________ Block:________ Name:___________________________#_____

D) Compare your data with your partner’s data. Create a hypothesis about the relationships among the length

of the sides of the right triangles based on the information gathered.

F) Use a scientific calculator – make sure it is in degree mode. Press the SIN key then enter the reference angle

you used above (21°). (Note – some older model calculators require you to type the angle first then press the

SIN key.) Write your answer in the appropriate box. Repeat using COS and TAN keys.

G) Compare your two charts. What do you notice? How can this be helpful?

H) Based on this activity, what is the ratio for Sin A where A is a variable that represents an angle measure?

Cos A? Tan A? (Use both of your chars and write a ratio using the location of the segments).

0 votes

Parent category: Education