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Bezzdna [24]
2 years ago
10

can someone please help me out with this problem ? i been trying to do this for like 2 days now and i still don’t get it .. also

i need some tips on how i can remember this when im doing a different problem

Mathematics
1 answer:
kotykmax [81]2 years ago
6 0

Answer:

Step-by-step explanation:

the Pythagorean theorem is

c is the hypotenuse which is the side opposite of the right angle

plug the numbers into the Pythagorean theorem

x^2+(\sqrt{26})^2=13^2

when squaring a square root, just take the number in the radical and get rid of the radical

x^2+26=169

subtract 26 from both sides

x^2=143

find the square root of 143

143 is prime so it can just be written as

x=\sqrt{143}

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