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2 years ago

Jan 18 Spiral Review Find the surface area of the following complex shapes.

Mathematics

1 answer:

zepelin [54]2 years ago

4 0

Answer:

320 in.²

Step-by-step explanation:

Let's think of the shape as a normal rectangle with a height of 16 inches. Now all we need is the length. If you look at the right corner, it looks like a piece has been cut out. Since that piece has the same length and height of 8 inches, it is a square. This tells us the missing length of the entire length of the rectangle. Now the length of the rectangle is 16 inches + 8 inches, which is 24 inches.

The total area of the rectangle is 16 × 24, which is 384.

Then from the total area, we just need to subtract the area of the cut-out part. The area of the cut-out square is 8 × 8, which is 64.

384 - 64 = 320

The total surface area of the following complex shape is 320 in.²

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*Remember in total the sum of all angles must be equal to 180
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45 is the measure of the 3rd angle.

Hope I helped :)

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3 years ago

The Kansas predicted that in 2018 the population in Centerville would be 17,466 and actuality it was 16,400 what is the percent

sammy [17]

Answer:

6.5%

Step-by-step explanation:

Percentage error formula =

|Estimated value - Real value|/Real value × 100

From the above question,

Estimated value = 17,466

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Percentage error = |17,466 - 16,400|/16,400 × 100

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3 years ago

Read 2 more answers

The measure of the largest angle of a triangle is three times the measure of the smallest triangle and 2 more than the third ang

Zigmanuir [339]

Answer:

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Step-by-step explanation:

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3 years ago

The Japanese 5 yen coin has a hole in the middle.

alexandr402 [8]

Answer:

Subtract the two diameters and multiply by 0.5

Step-by-step explanation:

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By subtracting the output we can then get the difference between both distances.

If hole diameter = 5mm and coin diameter = 22mm

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