Question

16 fill in the blank 1 point
find the perimeter.

17 multiple choice 1 point
find the area of a square with side lengths of \\(7\text{ cm}\\).

• \\(196\text{ cm}^2\\)
• \\(49\text{ cm}^2\\)
• \\(28\text{ cm}^2\\)
• \\(52\text{ cm}^2\\)

18 multiple choice 1 point
find the area of a parallelogram with a base measurement of \\(4\text{ cm}\\) and a height of \\(3\text{ cm}\\).

• \\(12\text{ cm}^2\\)
• \\(3.5\text{ cm}^2\\)
• \\(7\text{ cm}^2\\)
• \\(14\text{ cm}^2\\)

Explanation:

Calculate the perimeter of the rectangle

$$ P = 2 \times (7\text{ cm} + 3\text{ cm}) = 2 \times 10\text{ cm} = 20\text{ cm} $$

Calculate the area of the square

$$ A = s^2 = (7\text{ cm})^2 = 49\text{ cm}^2 $$

Calculate the area of the parallelogram

$$ A = b \times h = 4\text{ cm} \times 3\text{ cm} = 12\text{ cm}^2 $$

Answer:

Question 16

Find the perimeter. <blank>20</blank> cm

Question 17

• (A) \(196\text{ cm}^2\)
• (B) \(49\text{ cm}^2\) (Correct answer)
• (C) \(28\text{ cm}^2\)
• (D) \(52\text{ cm}^2\)

Question 18

• (A) \(12\text{ cm}^2\) (Correct answer)
• (B) \(3.5\text{ cm}^2\)
• (C) \(7\text{ cm}^2\)
• (D) \(14\text{ cm}^2\)