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mestny [16]
4 years ago
14

Can someone find the area of this rectangle please?x

Mathematics
1 answer:
Bogdan [553]4 years ago
4 0

Answer:

72 cm^2

Step-by-step explanation:

If the Length is twice the Width, then W = W and L = 2W.

The perimeter formula is P = 2W + 2L, which here is:

                                      36    = 2W + 2(2W), or

                                        36 = 2W + 4W = 6W; then W = 6 and L = 12.

The area formula is A = L * W, which here is:

A = 6*12 = 72 cm^2

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Answer:

8(-5 - -2) = 24. Inside the parantheses is 3. Then you'd multiply 8, which is 24

Step-by-step explanation:

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Hi please help , With solution if it's ok
Snowcat [4.5K]

<u>Answers </u><u>with </u><u>Method</u><u>:-</u>

1) Multiply the length value by 100,000.

2.5 \: hm = 2.5 \times 100000

=  >2.5 \: hm = 250000 \: mm

2) For this, divide the length value by 1000.

=  >  \frac{1800}{1000}

=  > 1.8 \: dam

3) For finding the approximate value, just multiply the value of length by 1.609.

=  >6450 \: m = (6450 \times 1.609) \: km

=  > 10380.27 \: km

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Simplify by combining like terms. 8a3 + 9t + 7a3 + 6t + 8a2
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4 years ago
A certain right triangle with integer side lengths has perimeter $72$. What is its area?
JulijaS [17]

Answer: 216 square units

====================================================

Explanation:

A common pythagorean triple you may be familiar with is the 3-4-5 right triangle. This has two legs of 3 and 4, and a hypotenuse of 5. The perimeter is 3+4+5 = 7+5 = 12. Note how this is a factor of 72.

If we multiply the perimeter (12) by 6, then 12*6 = 72. So we have scaled the triangle by a factor of 6. Each length is 6 times longer

the side length 3 becomes 3*6 = 18

the side length 4 becomes 4*6 = 24

the side length 5 becomes 5*6 = 30

The new perimeter is 18+24+30 = 42+30 = 72

The last step is to find the area. The two legs of this triangle are the base and height

area = 0.5*base*height

area = 0.5*18*24

area = 9*24

area = 216

-----

Or you could find the area of the 3-4-5 right triangle to get

area = 0.5*base*height = 0.5*3*4 = 6

then multiply by 36 to get 6*36 = 216. The 36 is the square of the scale factor 6 we applied above. The new lengths are 6 times longer, so the new area is 6^2 = 36 times larger.

7 0
3 years ago
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