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Rudiy27
3 years ago
14

Calculate the length of the Line in the trapezoid AC showing working to 1dp

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
4 0

Answer:

18.1 cm

Step-by-step explanation:

Consider a segment parallel to CD and passing through B.

This segment will form a right-angle triangle with A

It's length would be equal to the length of CD (the missing length)

Height of that triangle:

11 - 4 = 7

CD² = 16² - 7²

CD² = 207

CD = sqrt(207)

AC² = AD² + CD²

AC² = 11² + 207

AC² = 328

AC = 2sqrt(82)

Which is roughly 18.1 cm

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Now for a sales tax you would want to multiply by 108.5% (or 1.085) as you are paying the previous price and them some
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3 years ago
Nine buses hold 85 people each. If 693 people buy tickets for a trip, how many seats won’t be taken?
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Answer:

72

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X=121
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3 years ago
Order from least to greatest<br><br>457.2<br>415.138<br>828.142<br>452.018
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Answer:

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