Question

Mr. Morris is going to save money and replace his sailboat's mainsail himself. He must determine the area of the mainsail in order to buy the correct amount of material. Calculate the area of the parallelogram to determine how much material should be purchased. Be sure to explain how to decompose this shape into rectangles and triangles. Describe their dimensions and show your work.

Answer 1

so just you need to know formula for area of a parallelogram

Answer 2

look please on this my posted image - this parallelogram is bisected in two triangles by diagonal AC

so there are 2 triangles with base 20 ft and high 15 ft

how you calcule area of a triangle ?

Answer 3

@AZ