For each picture below, determine the supplementary angles, if possible. a) b)

Intro to College Math Triangle Trig - SohCahToa Name: Finding Trig Functions When Others Are Known 1. Draw a picture, labeling the information from the known trig function. 2. Identify the angle of interest, and label the sides O. A. or H. 3. Identify the formula of the trig function you want to find, and plug in the values. Ex 1: Find the values for all 3 trig functions for angle A and angle B. sin A = Csc A = 8 cm Cos A = sec A = tan A = cot A = 15cm sin B = Csc B = cos B = sec B = tan B = cot B = Ex 2: Find the three trig values for angle E. F 3 in 7 in Csc D = sin E = csc E = sin D = cos D = sec D = cos E = sec E = tan D = cot D = tan E = cot E =

Use the letter to match the words to their definition. A.) Major Arc an angle whose vertex is at the center of a circle and whose sides are radíi of that circle. B.) Semicircle a part of a circle between two given endpoints C.) Arc of a Circle an arc whose central angle has sides that intercept the circle at opposite endpoints of a diameter D.) Minor Arc an arc whose measure is greater than or equal to 180 degrees E.) Central Angle an arc whose measure is less than 180 degrees Blank 1: Blank 2: Blank 3: Blank 4: Blank 5: earch. 立

4. a) Sketch a pair of supplementary angles that are equal in measure. Explain. b) Sketch a pair of complementary angles that are equal in measure. Explain. ) Sketch a pair of opposite angles that are supplementary. Explain. d) Sketch a pair of opposite angles that are complementary. Explain.