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EleoNora [17]
3 years ago
11

What is the best estimate for the length of a bulletin board in meters

Mathematics
2 answers:
Reptile [31]3 years ago
6 0
Bulletin boards can be in all shapes and sizes. There is no correct or incorrect answer to this problem. 
enot [183]3 years ago
4 0
About 2 cm Hope that help you 


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Nady [450]

Answer:

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Step-by-step explanation:

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Tpy6a [65]

Answer:

SA = 2520 ft^2

Step-by-step explanation:

a = 21ft

b = 29ft

c = 20ft

h = 30ft

SA = 2A_{B} + (a+b+c)h

A_{B} = s(s﹣a)(s﹣b)(s﹣c)

s = \frac{a + b + c}{2}

SA= ah + bh + ch + \frac{1}{2} \sqrt{-a^4 + 2(ab)^2 + 2(ac)^2 - b^4 + 2(bc)^2 - c4}

SA= (21 * 30) + (29 * 30) + (20 * 30) +

       \frac{1}{2} \sqrt{-(21)^4 + 2(21 * 29)^2 + 2(21 * 20)^2 - (29)^4 + 2(29 * 20)^2 - (20)^4}

SA = 2520 ft^2

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Anvisha [2.4K]

B. -4-1. -4-1=-5, which is the amount of you count the spaces in between.

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