emilybassett1970 emilybassett1970

05-07-2021
Mathematics

contestada

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 to the nearest whole number class=

Respuesta :

09-07-2021

Answer:

c ≈ 21

Step-by-step 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

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