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2 years ago

7

Find the diameter of the circle with the given circumference. Use 3.14 for π(PI). C=22 cm

2 answers:

Bogdan [553]2 years ago

8 0

The answer is 7.006

Vera_Pavlovna [14]2 years ago

3 0

Answer: 14.01274
Explanation: The formula of the diameter of a circle is 2xradius. We only have the Circumference so we divide 22 by pi which is 7.00637. After that we multiply the radius (7.00637) by 2 which gives us 14.01274. If you round it is equal to 14.0

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The longest side of a triangle similar XYZ is 39 units long. Find the other side lengths of the triangle.

Neporo4naja [7]

Answer:

The side lengths are 30, 36 and 39.

Step-by-step explanation:

To find the missing side, write a proportion using side lengths from each similar shape. A proportion is an equation that sets equal two ratios.

$\frac{13}{39}=\frac{12}{y}$

Find y by cross multiplying numerator and denominator of each fraction.

13y = 39(12)

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Find the other missing side by repeating the process.

$\frac{13}{39}=\frac{10}{y}$

Find y by cross multiplying numerator and denominator of each fraction.

13y = 39(10)

13y = 390

y = 30

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