posted by Need Help on .
I need help on this math problem.
The width of a certain painting is 5cm less than twice the length. The length of the diagonal distance across the painting is 107cm. Find the length and width. Round your answer to 2 decimal places.
diagonal distance: 107cm
Is the substitutes correct?
Should I use the pythagoras method?
Can someone put me in the right track please so I can work out the problem?
please help and thank you