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3 years ago

How to find the measure of an arc?

Mathematics

1 answer:

Alla [95]3 years ago

5 0

360-157-53-60=90

90÷2=45 which is the measure of arc YX and arc WV

60+45= 105

The answer is C

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When constructing an inscribed equilateral triangle, how many arcs will be drawn on the circle?

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Find the area. 5cm 3cm 4 cm

Ostrovityanka [42]

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6 cm²

Step-by-step explanation:

Since 3 side lengths are given, I assume that this figure is a triangle. The area of a triangle can be determined by using hero's formula.

$\text{Area of triangle} = \sqrt{\text{s(s - a)(s - b)(s - c)}$

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$\implies \text{Area of triangle} = \sqrt{\text{s(s - 5)(s - 3)(s - 4)}$

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$\implies \text{Perimeter of triangle =}\ 5 + 4 + 3$

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Determining the half of perimeter:

$\text{Half of perimeter} = s = \dfrac{\text{Perimeter}}{2}$

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$\implies \text{Area of triangle} = \sqrt{\text{6(6 - 5)(6 - 3)(6 - 4)}$

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$\implies \text{Area of triangle} = \sqrt{\text{6(6 - 5)(6 - 3)(6 - 4)}$

$\implies \text{Area of triangle} = \sqrt{\text{6(1)(3)(2)}$

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$\implies \text{Area of triangle} = 6 \ \text{cm}^{2}$

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2 years ago

What can be concluded about the line represented in the table? Check all that apply.

motikmotik

The slope is 2.

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The y intercept is 4.

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The points (-5,-2) and (1,10) are also in the line.

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