3 years ago

Select three sets of numbers that can be the side lengths of a right triangle

Mathematics

1 answer:

777dan777 [17]3 years ago

8 0

Answer:

4th choice, 20, 21, 29 would be the answer.

Step-by-step explanation:

Pythagorean Theorem: a^2 + b^2 = c^2

a= 20, b= 21, c= 29 ( c has to be the C, hypotenuse, because it is the longest)

therefore,

20^2 + 21^2 = 29^2

into

400 + 441 = 841,

which is true, makes the Pythagorean Theorem work.

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Nimfa-mama [501]

Let's split the problem in non-intersecting subsets: we have $87$ good wood racquets, $13$ defective wood rackets, $90$ good graphite racquets, $10$ defective graphite rackets.

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Since the total is $200$ elements, the probability is

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dedylja [7]

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