Ask a New Question

Question

A square sheet of paper has area 15cm^2. The front side is white and the back side is black. A corner of the sheet is lifted and placed so that the crease is at a 45degree angle. If the fold is such that the visible black area is equal to the visible white area, how many centimeters long is the crease? Express your answer in simplest radical form.
9 years ago

Answers

Not sure
sqrt{40?}
9 years ago
SOMEBODY
@ Not sure, I think you forgot to divide by 2 for the area of the triangle.

The correct answer is 2\sqrt{5}
9 years ago

Related Questions

a sheet of paper is withdrawn from under a glass of milk without spilling it if the paper is removed... You are given a sheet of paper with the following diagram on it. You are also told that the two circ... help A paper sheet of 0.1 mm thickness is taken. Is cut in two and placed one above the other; is... A sheet of paper is 8 1/2 in wide and 11 in long. The sheet is printed with a margin 1 1/4 in. wide... A square sheet of paper measures35 centimeters on each side. What is the length of the diagonal of t... Take a sheet of A4 paper. Using a pencil and ruler accurately draw onto it squares that are 40mm x 4... This square sheet of paper P QRS measures 40 cm × 40 cm. The top-left corner P is folded down to me... A sheet of paper is 0.07 cm thick. Find the thickness of 500 sheets of paper. F a r a h cuz a sheet of paper into the shape of a triangle did you triangle has a height of 6 in a...
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use