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2 years ago

The circumference of a circle is 27.632 meters. What is the circle's diameter?

Mathematics

2 answers:

Dmitry_Shevchenko [17]2 years ago

8 0

Answer: ^^heya

your answer is ≈ 8.8

Step-by-step explanation:

C=2πr

d=2r

$\\d=$ $\frac{c}{\pi} =\frac{27.63}{\pi} = 8.79554$

rounded answer ≈ 8.8

Gnoma [55]2 years ago

8 0

Answer:

D=8.8m

Step-by-step explanation:

d=c/π

27.632/3.14=8.8

D=8.8m

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4 years ago

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3 years ago

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marin [14]

The distance between two points (x₁,y1),(x₂,y₂) is d
$d= \sqrt{(x2-x1)^2 + (y2-y1)^2}$

For the given problem we have
W(1,8),X(7,8),Y(4,5), and Z(1,2)

The length of WY = $\sqrt{(4-1)^2 + (5-8)^2}$ = 3√2
The length of WX = $\sqrt{(7-1)^2 + (8-8)^2}$ = 6
The length of WZ = $\sqrt{(1-1)^2 + (2-8)^2}$ = 6
The length of XY = $\sqrt{(4-7)^2 + (5-8)^2}$ = 3√2
The length of ZY = $\sqrt{(1-4)^2 + (2-5)^2}$ = 3√2

∴ WX = WZ ⇒⇒⇒ proved
XY = ZY ⇒⇒⇒ proved
WY = WY ⇒⇒⇒ reflexive property

∴ ΔWYZ is congruent to ΔWYX by SSS method

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3 years ago