Alan drew a polygon with four sides and four angles. all four sides are equal. none of the angles are right angles. what figure did alan draw?

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

Thanh and her crew are building a stage in the shape of a trapezoid for an upcoming festival. the lengths of the parallel sides of the trapezoid are 14 ft and 24 ft. the height of the trapezoid is 12 ft.what is the area of the stage? enter your answer in the box. ft²