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Ilya [14]
3 years ago
11

The area of a swimming pool is 120 square meters. The width of the pool is 8 meters. What is the length of the pool in centimete

rs?
Mathematics
1 answer:
Klio2033 [76]3 years ago
6 0
A=LW  We want to solve for L so divide both sides by W

L=A/W, and we are told that A=120 and W=8 so

L=120/8 m

L=15m

(now if that isn't a typo and you actually want the length in cm then)

L=15m(100cm/m)=1500cm
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Answer:

that is really so difficult ? what do you not understand here ? please let me know, if you need any further explanations.

you know what the perimeter is ? if it's the circumference, the way around the object. in other words, the distance you have to walk, when going along all sidelines of the object.

so the perimeter is the sum of of all side lengths.

56 = x - 1 + 3x + 3x + 1 = 7x

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that gives us the side lengths :

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3x = 21 cm

3x + 1 = 22 cm

the formula for the area of a triangle

A = baseline × height / 2

the advantage of a right-angled triangle in this regard is that the sides enclosing the 90 degree angle are already "acting" as baseline and the height (standing on the baseline with a 90 degree angle).

so, we can simply say here, the 3x side is the baseline, and the x-1 side is also the height.

therefore,

A = 21×7/2 = 147/2 = 73.5 cm²

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2 years ago
Plz help me I've been stuck on this
timurjin [86]
I found this :) hope it helps

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3 years ago
Please help and please make sure it’s right
slamgirl [31]

Answer:

135 degrees

Step-by-step explanation:

all the angles in a triangle need to add to 180 degrees, so you take

180-(65+70)= 45

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