Question

the rectangle on birthday the perimeter of 24 cm and the width of 4 cm find the length of the rectangle and calculate the area of the triangle pqr​

Answer 1

16 cm^2

Explanation:

The sum of length and width is half the perimeter, so is 12 cm. Since the width is 4 cm, the length is 12 cm -4 cm = 8 cm.

The area of the rectangle is the product of length and width, so is ...

rectangle area = (8 cm)(4 cm) = 32 cm^2

The area of the triangle is half the area of the rectangle, so is 16 cm^2.