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The perimeter of a rectangle is 40 units. The length of the rectangle, L, is 7 units.

The perimeter of a rectangle is 40 units. The length of the rectangle, L, is 7 units-example-1
User Matthemattics
by
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2 Answers

17 votes
17 votes

Answer:

length = 7 units

width = 13 units

area = 91 square units

perimeter = 40 units

Explanation:

What is the area of a rectangle?

❖ The area of a rectangle can be found by multiplying the length and

width of the rectangle.

What is the perimeter of a rectangle?

❖ The perimeter of a rectangle is the sum of all sides- length and

width. In this case, we're given the perimeter as 40 units and the

length as 7 units, but the width is unknown. Formula to find

perimeter of rectangle is 2(l + w) = P.

Solving for Width


  • 40=2(7+w)

  • 40=14+2w

  • 26=2w

  • w=13

Solving for Area


  • 7*13
  • 91 square units
User Moka
by
3.0k points
25 votes
25 votes

Answer:

L=7

W=13

Perimeter=40

Area=91

Explanation:

Perimeter = 2L+2W

40=2(7)+2W

40=14+2W

-14 -14

26=2W

Divide both sides by 2

13=W

Area=L x W

7 x 13 = 91

User Dale M
by
2.6k points