Doubling Surface Area

If the length of each side is doubled, what I think will happen is that the original area, which is 15 sq. cm., will quadruple to be 60 sq. cm.

Sufficient Properties Extended Response

A square is a parallelogram because a square has four sides congruent and opposite sides congruent. A square is a rectangle because a square has four right angles, four sides congruent,and opposite sides congruent. A square is a rhombus because it has four sides, opposite sides congruent, and all sides are congruent.

Composite Shapes Extended Response

I think she needs the smaller bag. To, figure this out first, you divide her yard into different shapes: a parrallelogram, a square, and a triangle. Next, you find the area of the triangle which the formula is 50x 30 which equals 1,500 and then divide 1,500 by 2 which is 750. Then, you find the area of the square, the formula is 50x 50 which is 2,500. Next, you find the area of the parrallelogram, which the formula is 50x 30 which is 1,500. Finally, you add 750, 2,500, and 1,500 which the sum is 4,750 sq.ft. Therefore, she needs the smaller bag.