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The lengths of two sides of a right triangle are given. find the length of the third side. Round to the nearest tenth if necessary. Legs: 28 in. And 15 in.
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The lengths of two sides of a right triangle are given. find the length of the third side. Round to the nearest tenth if necessary. Legs: 28 in. And 15 in.

User Nicolas El Khoury
by
7.1k points

1 Answer

1 vote
Use cosine rule:

c²=b²+a²-2ba cosC

Right triangle = 90 degrees
cosine 90 degrees = 0

c²=28²+15²-2×28×15×0
c²=28²+15²
c=√1009
c=31.8 in



User Mmshr
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7.0k points
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