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Drupady [299]
3 years ago
10

(Please help/ hurry) Find the length of the third side, If necessary, write in simplest radical form

Geography
1 answer:
Neko [114]3 years ago
5 0

Answer:

The length of the third side is 2.

Explanation:

According to figure, we have a right triangle. The missing length can be determined by Pythagorean Theorem:

r^{2} = s^{2} + l^{2} (1)

Where:

r - Hypotenuse.

s, l - Legs.

If we know that r = 2\sqrt{5} and l = 4, then the missing length is:

s = \sqrt{r^{2}-l^{2}} (2)

s = \sqrt{20-16}

s = \sqrt{4}

s = 2

The length of the third side is 2.

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