Elly has 2 rectangular gardens. One measures 1809 cm by 2891 cm and the other measures 738 cm by 249 cm. Elly wants to put a fence around both, how much does she need to buy?

Question

Mathematics

Celia Cobb

1 September, 08:54

Elly has 2 rectangular gardens. One measures 1809 cm by 2891 cm and the other measures 738 cm by 249 cm. Elly wants to put a fence around both, how much does she need to buy?

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Answers (2)

Know the Answer?

Franco Atkinson · Answer 1

She needs 11374 cm to buy

Step-by-step explanation:

* Lets explain how to solve the problem

- The dimensions of the first rectangle is 1809 cm and 2891 cm

- The dimensions of the first rectangle is 738 cm and 249 cm

- Elly wants to put a fence around both

- To find the length of the fence calculate the perimeters of the two

rectangles

- The perimeter of the rectangle = 2 (b + h), where b, h are the

dimensions of the rectangle

# First rectangle

∵ The dimensions are 1809 cm and 2891 cm

∵ P = 2 (b + h)

∴ P = 2 (1809 + 2891) = 2 (4700) = 9400 cm

# Second rectangle

∵ The dimensions are 738 cm and 249 cm

∵ P = 2 (b + h)

∴ P = 2 (738 + 249) = 2 (987) = 1974 cm

∵ The length of the fence = the sum of the perimeters of the two

rectangles

∴ The length of the fence = 9400 + 1974 = 11374 cm

* She needs 11374 cm to buy

Adyson George · Answer 2

She needs to purchase 11374

The difference i the length of her and her brother's fence is 8442

Step-by-step explanation:

First you need to find the perimeter by adding the lengths and widths all together.

1809+2891+738+249=5687

But you need to times it by 2 because it says Elly has 2 gardens.

5687 x 2=11374.

If you are confused on the second question the answer is down below (The person who ask this question did have to ask the second question but on my math test this question has 2 parts).

The question is Elly's brother also wants to put up a fence around his garden that is 1034 centimeters by 432 centimeters. What is the difference in the length of fence that each will purchase?

First you have to find the perimeter of Elly's brother garden.

1034+432+1034+432=2932

Last we have to find out what is the difference in the length of fence that each will purchase.

To do that you will have to subtract Elly's perimeter and Elly's brothers perimeter.

11374-2932=8442

So Elly difference in the length of the fence is 8,442.