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what is the value of c? enter your answer in the box. round only your final answer to the nearest whole number.

what is the value of c? enter your answer in the box. round only your final answer-example-1
User Alex Chance
by
2.4k points

1 Answer

11 votes
11 votes

Answer:

c ≈ 21

Explanation:

By applying cosine rule in the given triangle ABC,

c² = a² + b² - 2abcos(C)

c² = (17)² + (10)² - 2(17)(10)cos(98.8°)

c² = 289 + 100 - 340(-0.1530)

c² = 441.015

c = 21

c ≈ 21

User Anton Kazakov
by
3.3k points