The length of a side of an equilateral triangle is 12 cm. Find a) the height of the triangle b) the area of the triangle c) the perimeter of the triangle

Please answer the question please

The hypotenuse of a right triangle is 11.0 cm. One side is 6.6 cm. Calculate a) the other side b) the area of the triangle

Sam works at a grocery store. he needs to change a rectangular display with the dimensions of 40cm by 62.5cm to a square display with the same area. a.) what would the length of each side be?b.) if sam was to cut the border of the length you determined, would it exactly fit the display?