Unit 7 Right Triangles Grade: 10 Subject: Geometry Date: 1/10/12.

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Presentation transcript:

Unit 7 Right Triangles Grade: 10 Subject: Geometry Date: 1/10/12

Identify the correct equation to solve for x. 1 Identify the correct equation to solve for x. A SIN x =13/28 B COS x=13/28 28 C TAN x=13/28 x 13

2 Find TAN B. B A 8/15 B 8/17 17 8 C 15/17 A D 15/8 C 15

Which trig. ratio equals 15/17. 3 Which trig. ratio equals 15/17. B A SIN A B COS B 17 8 C TAN A A D COS A C 15

Identify the correct equation to solve for x. 4 Identify the correct equation to solve for x. A SIN 68 68 B COS 68 x C TAN 68 13

5 Classify the triangles as acute, obtuse & right  respectively. 9,40,41 5,11,12 16,17,24 A obtuse, right, acute B acute, right, obtuse C right,obtuse, acute D none of the above

6 Computer displays are usually measured along the diagonal of the screen. A 14-inch display has a diagonal that measures 14 inches. If the height of the screen is 8 inches, how wide is the screen? Round answer to the nearest tenth.

Find x. Round to nearest tenth. 7 Find x. Round to nearest tenth. 17 9 x

8 Dee is parasailing at the ocean. The angle of depression from her line of sight to the boat is 41. If the cable attaching  Dee to the boat is 500 feet long, how many feet is Dee above the water? Round to nearest whole number. 41 500

9 Find RY.

10 A golfer is standing at the tee, looking up to the green on a hill. If the  tee is 36 yards lower than the green and the angle of elevation from  the tee to the hole is 12, find the distance from the tee to the hole.  Round to nearest whole number. tee

Answers B D A 11.5 inches 14.4 328 feet 20 173.2 yards