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melamori03 [73]
3 years ago
11

X

Mathematics
1 answer:
erica [24]3 years ago
7 0

Answer: 67.725feet²

Step-by-step explanation:

A heptagon consist of 7 sides and Its area is calculated using the formula

= 1/2 × nsr

n = number of sides = 7

s = side length = 4.3

r = apothem = 4.5

Area = 1/2 × nsr

= 1/2 × 7 × 4.3 × 4.5

= 0.5 × 7 × 4.3 × 4.5

= 67.725feet²

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Your estimate that the length of a board is 24 feet. The actual length of the board is 22 feet. Find the percent error.
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Answer:

9.09%

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5 0
3 years ago
How to find the surface area of a triangular prism using net?
Mazyrski [523]

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8 0
3 years ago
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m/3

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4 0
3 years ago
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Effectus [21]

Answer:

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Sorry I'm probably too late since Quizziz doesn't wait unless you have the freeze timer thing.

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6 0
3 years ago
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kotykmax [81]
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7 0
3 years ago
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