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09-06-2021
Mathematics

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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.

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 class=

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ferrybukantoro ferrybukantoro

09-06-2021

Answer:

124°

Step-by-step explanation:

cos X = (11²+7²-16²)/2(11)(7)

= (121+49-256)/154

= -86/154

= -0.5584

X = cos~¹ -0.5584 = 124°

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