Introduction To Trigonometric Ratios

Date:_____________________________ Block:________ Name:___________________________#_____

Introduction to Trigonometric Ratios

A) Observe the triangle below and label the hypotenuse, opposite sides and adjacent sides with respect to the

reference angle.

B) Use a ruler to find the measure of the sides of all three right triangles. Use the chart below to record your

data for each triangle. Calculate the missing angle measures of each triangle.

For each triangle, form ratios using its segment lengths, then write them in decimal form (round to four decimal

places):

C) Write a sentence describing what you notice about your data.

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