You cannot: there is not enough information.
There is no formula: you measure the length of all of the sides. If the kite is bilaterally symmetric, add the lengths along the right or left side and multiply by two, because for side lengths A and B, its perimeter is 2A+2B.
If that's a rectangle or a kite, then the perimeter is 50 feet.
Area of a kite in square units = 0.5 times the product of its diagonals
You add the lengths of all four sides.
17.2 in
A kite does not have a radius.
That depends on what you are given. The two diagonals will make four right triangles, and you can use the angles, along with other information given to find unknown values. See related link.
For recreation e.g flying of kite, kite surfing and many others.
He flew a kite to find out about eletricity.
Kite string comes on wooden dowels, about half an inch to an inch in diameter, with the string wrapped around the dowel. One end of the string is attached to the kite, while the other end is attached to the dowel that you hold while flying the kite. The dowel allows you to easily release more string to let the kite go higher, or to reel the kite back in to you.
There are many places to find instructions on how to make a kite. They can be found anywhere. Some places to find these directions are wikihow, ehow, squakfox, pbs, my-best-kite.
Kite is a quadrilateral in which 2 pairs of opposite angles are equal .