A triangle has sides 11 cm, 16 cm and 7 cm. the largest angles has size of x. calculate X. Round your answer to the nearest degree.

asked Apr 5, 2022 149k views

3 votes

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2 votes

Answer:

124°

Explanation:

cos X = (11²+7²-16²)/2(11)(7)

= (121+49-256)/154

= -86/154

= -0.5584

X = cos~¹ -0.5584 = 124°

Hkasera answered Apr 10, 2022

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