Use the right triangle and values to find the missing length. Round to the nearest tenth. A = 2, B = 4, C = ?

Question

Use the right triangle and values to find the missing length.  Round to the nearest tenth.  A = 2, B = 4, C = ?

jdoe0001 · Answer

anonymous · Answer

Use the pythagorean theorem
x^2+b^2=c^2
2^2+4^2=c^2
4+16=c^2
20=c^2
Find the square root of each
Square root of 20=C

anonymous · Answer

Thanks !

anonymous · Answer

Np

anonymous · Answer

I looked at the multiple answers that they have and 20 is not in them.  it is :
1. 3
2. 2.8
3. 3.5
4. 4.5

anonymous · Answer

I said it was the square root of 20=4.47 which would be letter 4

anonymous · Answer

My bad , I didn't see that you wrote that.  I thought it said that 20 was the answer.  totally my fault but thanks for all your help !

anonymous · Answer

Haha it's alright :)