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kirill [66]
3 years ago
10

Given the area , find the radius of each circle.Use

i" align="absmiddle" class="latex-formula"> = 3.14
A=113.04
A=28.26

Show your work I would appreciate it
Mathematics
1 answer:
lubasha [3.4K]3 years ago
5 0

Answer:

1. 2508.96

2. 40123.050624

Step-by-step explanation:

28.26 x 28.26 x 3.14 = 2508.96

113.04 x 113.04 x 3.14 = 40123.050624

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Answer:

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Step-by-step explanation:

From Δ ABC

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\tan 43.9 = \frac{AB}{BC}

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h = 0.9623 x ------- (1)

From Δ ABD

\tan 37.6 = \frac{h}{20+ x}

h = 0.77 (x + 20) ----- (2)

Equating Equation  1 & 2 we get

0.9623 x =  0.77 (x + 20)

0.9623 x = 0.77 x + 15.4

x (0.1923) = 15.4

x = 80.08 m

Thus the height of the tree is given by

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H = 0.9623 × 80.08

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Therefore the height of the tree is H = 77.06 m

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