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The Cosine Rule. Instructions. Use black ink or ball-point pen. Answer all questions. Answer the questions in the spaces provided. there may be more space than you need. drawn, unless otherwise indicated. You must show all your working out. Information. The marks for each question are shown in brackets.
Practice the law of cosines with this worksheet that contains 24 problems with solutions. Find the missing side length, angle, or area of a triangle using the cosine rule.
SINE AND COSINE RULES – PRACTICE QUESTIONS 1. Use sine rule to find x to 1 decimal place. 2. Use sine rule to find y to 1 decimal place. 3. Use sine rule to find z to 2 significant figures. x 13.9 cm 49° 62° z 11 cm 31° 65° 58° y 51° 7.2 m
Cosine Rule pdf. Examples. 3: In triangle ABC, the side AB = 6cm, the side BC = 8cm and angle ABC = 100° Find the length of side AC. Give your answer to 1 decimal place. Question 4: In triangle DEF, the side DE = 30cm, the side DF = 40cm and the side EF = 45cm. Find the size of angle DFE. Give your answer to 3 signiVicant Vigures.
7 cm. 65o 7 cm. W B. 7 cm B X. C2 Find the perimeter of XYZ. R. Z. Y. 7 cm 120°.
18 P and Q are two points on a coast. P is due North of Q. A ship is at the point S. PS = 2.9 km. The bearing of the ship from P is 062° The bearing of the ship from Q is 036° Calculate the distance QS. Give your answer correct to 3 significant figures.
9 wrz 2019 · The Corbettmaths Practice Questions on Advanced Trigonometry. Next: Exact Trigonometric Values Practice Questions
