# Garden

Rectangular garden has a length 99 m and width 84 m. Calculate how many m2 will decrease its area if land by ornamental fence with width 30 cm.

Result

S =  109.44 m2

#### Solution:

$a = 99 \ m \ \\ b = 84 \ m \ \\ h = 30 \ cm = 30 / 100 \ m = 0.3 \ m \ \\ \ \\ S_{ 1 } = a \cdot \ b = 99 \cdot \ 84 = 8316 \ m^2 \ \\ S_{ 2 } = (a-2 \cdot \ h) \cdot \ (b-2 \cdot \ h) = (99-2 \cdot \ 0.3) \cdot \ (84-2 \cdot \ 0.3) = 8206.56 \ m^2 \ \\ \ \\ S = S_{ 1 }-S_{ 2 } = 8316-8206.56 = \dfrac{ 2736 }{ 25 } = 109.44 = 109.44 \ m^2$

Leave us a comment of this math problem and its solution (i.e. if it is still somewhat unclear...): Be the first to comment! #### Following knowledge from mathematics are needed to solve this word math problem:

Do you want to convert area units?

## Next similar math problems:

1. It is rectangular? Size of two of the angles in a triangle are: α=110°, β=40°. Is it a right triangle?
2. Bus vs. train Bus started from point A 10 minutes before the train started from the same place. The bus went an average speed of 49 km/h, train 77 km/h. To point B train and bus arrived simultaneously. Calculate time of train journey, if train and bus travelled the.
3. Chocholate Table of chocolate is divided into squares on its surface. Lengthwise has 15 squares and widthwise 19 squares. We must chocolate broke into individual squares. How many times we have broke it to get only individual squares? It is not permitted to break
4. Mistake Nicol mistake when calculate in school. Instead of add number 20 subtract it. What is the difference between the result and the right result?
5. Opposite numbers Calculate opposite numbers (additive inverse) to given ones:
6. Theater The theater has in each row with 19 seats. Ticket to the first 10 rows is for 30 USD. In next rows is for 15 USD. The theater was completely sold out. Revenue was 12255 USD. How many rows are in the theater?
7. Five girls Five girls traveling by bus. Each holds in each hand two baskets. In each basket are four cats. Each cat has three kittens. Two girls exits bus. How many legs are in the bus?
8. Eggs Mother bought from neighbors 39 domestic eggs. Her neighbor got back €4.54 from €10. How many euros get back from 20 banknote if she buy 94 eggs from a neighbor?
9. Cast brass Brass cast weight was 3.84 kg, it had turned into piston weight 3.491 kg. How many grams of brass was turned off? How much and how many times is 72.1 greater than 0.00721?
11. Hens 11 hens will eat spilled grain from 6AM to 16 PM. At 11 hour grandmother brought 4 hens from the neighbors. At what time was grain out?
12. Evaluate - order of ops Evaluate the expression: 32+2[5×(24-6)]-48÷24 Pay attention to the order of operation including integers
13. Root The root of the equation ? is: ?
14. I think number I think number.When I add 841 to it and subtract 157, I get a number that is 22 greater than 996. What number I thinking?
15. Unknown x If we add to unknown number 21, then divide by 6 and then subtract 51, we get back an unknown number. What is this unknown number?
16. Flowerbed 2 Around the square flower bed in a park is sidewalk 2 m wide. The area of ​​this sidewalk is 243 m2. What is the area of the flowerbed?
17. Integers May be the sum of two integers less than their difference?