Posted by Jared on Monday, February 28, 2011 at 4:12pm.
The diagonal of a square forms two
45-45-90 triangles.
The sides of a 45-45-90 triangle are in the ratio,
a : b : hypotenuse
x : x : x(sqrt(2))
The diagonal is the hypotenuse of this 45-45-90 triangle.
Side = 7
7 * (sqrt(2)) = ?
a^2 + b^2 = c^2
7^2 + 7^2 = c^2
49 + 49 = 98
c = square root of 98
Be sure to round to the nearest tenth.
Related Questions
math - the base of the pyramid of Khufu is a square with side 230m long. ...
Square roots - The diagonal of a square has length square root 2 X s, where s is...
math - the area of a square is 8 square meters . what is the length of one side ...
geometry - The area of ETG is 400 square meters. To the nearest tenth of a meter...
Alg 1 - The largest town square in the world is Tiananmen Square in Beijing, ...
math - The Harveys keep their goat on a 3-meter chain connected to a metal hook ...
geometry - Find, to the nearest tenth of a centimeter, the length of a diagonal ...
math - the side of a square is 2 meters long. what is the area of the square? ...
geometry - to the nearest integer how long is the diagonal square with the side ...
geometry - ind the area of a circle with a radius of 1.2 meters.find the area to...
For Further Reading
