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alisha [4.7K]
3 years ago
10

I need to know the answer for 19,20,21

Mathematics
1 answer:
pantera1 [17]3 years ago
7 0
19. $30,681.82
20. Find surface area for this one
21. Use geometry
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Answer:

m<1 = 45°  

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Step-by-step explanation:

<u>Points to remember</u>

1). Vertically opposite angles are equal

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From the figure we get,

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By using angle sum property <2 + 59 + 45 = 180

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Step-by-step explanation:

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