PLS HELP 1ST ANSWER GETS BRAINLIEST!!!!!Which math sentence can be used to determine if this triangle is a right triangle?
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The law used for determining the measure of unknown sides and angles of a triangle. The measure of the largest angle in triangle abc is 98.25 degrees
<h3>Law of cosines</h3>The law used for determining the measure of unknown sides and angles of a triangle. It is expressed as:
c² = a² + b² - 2abcosC
Given the following
c = 16
a = 12
b = 9
Substitute
16² = 12² + 9² - 2(9)(12)cosC
256 = 144 + 81 - 216cosC
31 = -216cosC
cosC = -31/216
C = 98.25 degrees
Hence the measure of the largest angle in triangle abc is 98.25 degrees
Learn more on cosine rule here: brainly.com/question/23720007
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