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Answer: right

Step-by-step explanation: use cos sss. 8^2=5^2+7^2-2(5)(7)cosx. if x=90 then its a right. greater than 90 is obtuse. smaller than 90 is acute

Answer: Acute and right.

Step-by-step explanation:

A right angle is a 90-degree angle which makes a little box if you compare it to a protractor: there is one 90-degree angle. An acute angle is 90 degrees and lower: there are two acute angles

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