3.7. Always look to the digit one to the right of the digit that you're rounding to. So if you're rounding to the nearest tenth, you look to the digit in the hundredths location. If that digit is 5 or more, round the tenths place up one more, but it's 4 or less, just drop that number, and leave the tenths place as is.
The nearest tenth means 1 number after the decimal. Since in 3.68, the 6 is followed by an 8, we must round up to 3.7. That's your answer, hope I could help!
It holds the legs up. there is a right angle which is the little box in the 90 degree corner:) the hypotenuse is always the longest part on the triangle which you can not simplify:) so the right triangle has legs that you can simplify:)
