Question

4.4: Measuring a Picture Frame

kiran bent some wire around a rectangle to make a picture frame. The rectangle is 8 inches by 10 inches.
1. Find the perimeter of the wire picture frame. Explain or show your reasoning.

Answer 1

It’s simple, do: 8+8+10+10, just add them you will get 36. The explanation is: Perimeter is add up all the sides, since it is a rectangle it has congruent sides, so they have the same length

Answer 2

36 inches

Explanation:

The perimeter of a plane shape is the distance around the shape.

Given that length = 10 inch

Breadth = 8 inch

The perimeter of the rectangle is given by the simple formula:

`P = 2 (L+B)`

where P = Perimeter

L = Length of the shape

B = Breadth of the shape

Therefore, the perimeter of the shape = 2 (8 + 10)

= 36 inch