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Alexxx [7]
3 years ago
15

Look at the triangle ABC. What length of side AB of the triangle? a.2 b.square root of 20 c.6 d.square root of 38

Mathematics
2 answers:
storchak [24]3 years ago
5 0

Hello!


To find our answer, we can use the Pythagorean Theorem. This is a²+b²=c², where a and b are the legs and c is the hypotenuse.


As you can see, AB is the hypotenuse. Therefore we just plug in values for a and b, or the other sides that are legs.


2²+4²=c²

4+16=c²


To find c, we undo our exponent by adding a square root to both sides.


c=√20


Therefore, our answer is B.


I hope this helps!

Y_Kistochka [10]3 years ago
4 0
I think is b cuz I know foe a fact;)
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