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2 years ago

I'm confused on finding the area of this question

Mathematics

2 answers:

nignag [31]2 years ago

7 0

Answer:

7200 cm²

Step-by-step explanation:

You need to do two things before calculating the area:

1) All lengths must be in the same unit.

2) Divide the compound figure into two rectangles.

See the picture below.

Use the conversion 1 m = 100 cm to change the two lengths in m to cm.

2 m = 2 × 100 cm = 200 cm

4 m = 4 × 100 cm = 400 cm

area of rectangle = length × width

total area = 12 cm × 200 cm + 12 cm × 400 cm

total area = 2400 cm² + 4800 cm²

total area = 7200 cm²

Triss [41]2 years ago

3 0

Answer:

The area of the given figure is 7200 cm² or 72 m²

Step-by-step explanation:

For the given figure we divide this in two rectangle

i.e., Rectangle A and Rectangle B

So,

<h3><u>Rectangle A</u></h3>

Length (l₁) = 2 m = 200 cm
Breadth (b₁) = 12 cm

<h3><u>Rectangle</u><u> </u><u>B</u></h3>

Length (l₂) = 4 m = 400 cm
Breadth (b₂) = 12 cm

Here, Area of Rectangle A

A = (l₁) × (b₁)

A = 200 × 12 cm

A = 2400 cm² or 24 m²

Now, Area of Rectangle B

A = (l₂) × (b₂)

A = 400 × 12 cm

A = 4800 cm² or 48 m²

Now,

Area of figure

= Area of Rectangle A + Area of Rectangle B

= 2400 cm² + 4800 cm²

= 7200 cm² or 72 m²

Thus, The area of the given figure is 7200 cm² or 72 m²

<u>-TheUnknownScientist</u><u> 72</u>

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"1. We assume, that the number 37.5 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

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We know the population proportion π=0.8, according to the 2011 National Survey of Fishing, Hunting, and Wildlife-Associated Recreation.

If we take a sample from this population, and assuming the proportion is correct, it is expected that the sample's proportion to be equal to the population's proportion.

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With the mean and the standard deviaion of the sample, we can calculate the z-value for 0.79 and 0.81:

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2 years ago

I'm confused on finding the area of this question​

I'm confused on finding the area of this question