Question

Which amount of 1 inch square pieces of chocolate would you

rather have? Explain the reason for your choice.
a. Enough to cover a rectangle with a length of 9 in. and a perimeter of 22 in.
b. Enough to cover a rectangle with a length of 5 in. and a perimeter of 20 in.

Answer 1

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Answer 2

a. Chocolate need to cover a rectangle with a length of 9 in. and a perimeter of 22 inches is 18 pieces of 1 inch square piece chocolates

b.Chocolate need to cover a rectangle with a length of 5 in. and a perimeter of 20 inches is 20 pieces of 1 inch square piece chocolates

Step-by-step explanation

a. To cover a rectangle with a length of 9 in. and a perimeter of 22 in.

perimeter = 2(length+breadth)

Breadth = 22 -9×2 = 22-18 = 4 ÷ 2 = 2 inches

Area of rectangle = 9 × 2 = 18 inches

18 pieces of 1 inch square piece Chocolate is needed to cover the rectangle

b. To cover a rectangle with a length of 5 in. and a perimeter of 20 in.

perimeter = 2(length+breadth)

Breadth = 20 - 5 ×2 = 10 = 10 ÷ 2 = 5 inches

Area of rectangle = 5 × 5 = 20 inches

20 pieces of 1 inch square piece Chocolate is needed to cover the rectangle