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3 years ago

12

the area A of a sector circle is given by A= ... idk how to write that so look at the image please lol

2 answers:

Pavel [41]3 years ago

5 0

A=πr^2s/360 multiply both sides by 360

360A=sπr^2 divide both sides by πr^2

s=360A/(πr^2)

natima [27]3 years ago

5 0

It's D
but the problem is wrong
at the end shoud have been
Solve the equation for S to find the angle measure given the radius and the area of the SECTOR not the circle
if they give you the radius of the circle then...
the area is redundant since circle area is pi*r^2

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Please help ASAP!!! Find the area of the triangle.

pentagon [3]

Answer:

2.3cm x 4cm =

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2 years ago

Three lines of crops in a garden form a triangular shape. Strawberries are planted in a 10 ft line and green beans are planted i

Marat540 [252]

Answer:

$p = 19.18$

Step-by-step explanation:

This question is illustrated using the attachment and will be solved using cosine formula

$a^2 = b^2 + c^2 - 2bcCosA$

<em>Let the strawberry side be s, the Green beans be b and the pumpkins be p.</em>

<em />

The cosine formula in this case is:

$g^2 = s^2 + p^2 - 2spCosG$

Where

$s = 10$

$g = 18$

The equation becomes

$18^2 = 10^2 + p^2 - 2 * 10 * p * Cos\ 68$

$324 = 100 + p^2 - 20 * p * 0.375$

$324 = 100 + p^2 - 7.5p$

Collect Like Terms

$p^2 - 7.5p + 100 - 324 = 0$

$p^2 - 7.5p - 224 = 0$

Using quadratic formula:

$p = \frac{-b\±\sqrt{b^2-4ac}}{2a}$

Where

$a = 1$

$b = -7.5$

$c = -224$

$p = \frac{-(-7.5)\±\sqrt{(-7.5)^2-4*1*-224}}{2*1}$

$p = \frac{7.5\±\sqrt{56.25+896}}{2}$

$p = \frac{7.5\±\sqrt{952.25}}{2}$

$p = \frac{7.5\± 30.86}{2}$

$p = \frac{7.5 + 30.86}{2}$ or $p = \frac{7.5 - 30.86}{2}$

$p = \frac{38.36}{2}$ or $p = \frac{-23.36}{2}$

$p = 19.18$ or $p = -11.68$

But length can not be negative.

So:

$p = 19.18$

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3 years ago

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Marianna [84]

Answer:

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Step-by-step explanation:

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slega [8]

Answer:

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Step-by-step explanation:

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Alexus [3.1K]

Answer:

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Step-by-step explanation:

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