Please i need a answer and u will get good deeds

Find the area of the regular hexagon if a side is 20 cm.

Use the formulas a = x 2 – y 2, b = 2xy, c = x 2 + y 2 to answer this question. one leg of a right triangle has length 11 and all sides are whole numbers. find the lengths of the other two sides. the other leg = a0 and the hypotenuse = a1

Me n o w. i need t h i s. 10 points