Question

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

Answer 1

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!

Answer 2

I think is b cuz I know foe a fact;)