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attashe74 [19]
3 years ago
10

A rectangle has an area 18sq cm.id its length and width are wjole numbera.what is its greatest possible perimeter

Mathematics
1 answer:
makkiz [27]3 years ago
3 0

Answer:

38cm

Step-by-step explanation:

1. The perimeter of a square can be found with the formula2 \times (width + length)

2. Since its length and width are whole numbers, it must be either

1 x 18,

2 x 9 or

3 x 6

3. Using the formula in step 1, we can found that the perimeter in these cases are

38

22

18

respectively

4. Compare those perimeter we found in previous step, it's obvious that the greatest is 38. Solved.

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Describe and correct the error a student made in finding the midpoint cd with c(-4,5) and d(-1,-4).
Gnesinka [82]

Answer:

Step-by-step explanation:

The formula for finding the midpoint of two coordinates is expressed as;

M(X,Y) = (\frac{x_1+x_2}{2} , \frac{y_1+y_2}{2})

Given the coordinates c(-4,5) and d(-1,-4), x1 = -4, y1 = 5, x2 = -1 and y2 = -4.

For the X coordinate of the midpoint

X = x1+x2/2

X = -4+(-1)/2

X = -4-1/2

X = -5/2

X = -2.5

Similarly for Y:

Y = y1+y2/2

Y = 5+(-4)/2

Y = 5-4/2

Y = 1/2

Y = 0.5

Hence the midpoint coordinate of C(-4,5) and D (-1,-4) is (-2.5, 0.5)

5 0
3 years ago
Alaska has a land area of about 1,700,000 km² Florida has a land area 1/10 the size of Alaska what is the land area Florida
ElenaW [278]
1/10 of 1,700,000 km² is 170,000 km² .
5 0
3 years ago
Find the side lengths ! help pls
sergeinik [125]

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180 - (70 + 70) = 180 - 140 = 40

40° is your answer.

m∠X = 40°

(b) All sides are congruent, making it a equilateral triangle. If it is a equilateral triangle, then all the angles also have the same measurement. The total of the interior angle's measurement is 180°. Divide by the amount of angles, 3:

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60° is your answer.

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7 0
3 years ago
​6 2/3÷1/5 juuuuuuuuuuuuuuu
MAXImum [283]

Answer:

Exact Form:

100/3

Decimal Form:

33.3

Mixed Number Form:

33 1/3

<em><u>i hope this helped at all.</u></em>

7 0
2 years ago
Write <br> 36<br> as a product of prime factors.
AURORKA [14]
The prime factors are: 2 x 2 x 3 x 3 
3 0
3 years ago
Read 2 more answers
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