please answer with explanation

Find the area of the shaded region in the figure below. Briefly explain your steps. 5 cm 12 cmFind the perimeter and area of the figure below. Briefly explain your steps. 110 ft 150 ft 80 ft 225 ftFind the area of the shaded figure below. Briefly explain your steps. .30 inFind the sides a and b in the triangle below if A=36.1 degrees and c=18. Make sure that your calculator is in degree mode. Indicate what formulas were used. Find the side x in the figure below. Round your answer to two decimal places if needed. Briefly explain your steps. A B 450 450 D 5