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Arlecino [84]
3 years ago
7

Someone please help me

Mathematics
1 answer:
deff fn [24]3 years ago
3 0
1 cup is 128 grams, she used 1/2 of a cup, 1/2 is 64 grams, she needs to add 1/4 of cup (32 grams)  to have the correct amount 
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The area of a sector of a circle with a radius measuring 15 cm is 75(pi) cm2. What is the measure of the central angle that form
anyanavicka [17]

The sector of the circle is bounded by 2 radii, and the measure of the central angle that forms the sector is 120 degrees

<h3>How to determine the central angle?</h3>

The given parameters are:

  • Area = 75π cm^2
  • Radius, r = 15 cm

The area is calculated using

Area = α/360 * πr^2

So, we have:

α/360 * π * 15^2 = 75π

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α/360 * π * 225 = 75π

Divide both sides by 75π

α/360 * 3 = 1

Multiply

α/120  = 1

Multiply both sides by 120

α = 120

Hence, the measure of the central angle that forms the sector is 120 degrees

Read more about sectors at:

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Step-by-step explanation:

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