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katen-ka-za [31]
3 years ago
8

HURRYYYYY PLEASEEEEE Find the area of the circle. Use 3.14 for p.

Mathematics
1 answer:
scZoUnD [109]3 years ago
6 0

Answer: B

Step-by-step explanation:

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A home has a triangular backyard. The second angle of the triangle is 4degrees more than the first angle. The third angle is 8de
amid [387]

Answer:

1st angle = X

2nd angle = X + 7

3rd angle = X + 18

Then (sum. them): 3X + 25 = 180   ==>  X = 51.67 degree

Therefore,

1st angle = 51.67 degree

2nd angle = 58.67 degree

3rd angle = 69.67 degree

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3 years ago
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A cone has a diameter of 24cm and a volume of 2713cm3. What is best approximation of height of cone?
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V=(1/3)hpir^2
aprox

d=2r
d/2=r
d=24
r=24/2=12

V=2713

2713=(1/3)hpi(12^2)
2713=(1/3)hpi(144)
2713=48pih
divide both sides by 48
56.5208=hpi
aprox pi=3.14
divide both sides by 3.14
56.5208/3.14=h=18.0003
height=18cm
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3 years ago
What is the area of a triangle with side lengths 13-14-15?
Novosadov [1.4K]

84. Area of a triangle is (base x height) / 2

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3 years ago
What figure will result when the triangle is rotated around RE?
Oduvanchick [21]

Answer:

The figure will result is cone ⇒ B

Step-by-step explanation:

<em>When a </em><em>right triangle is rotated about its vertical leg 360°</em><em>, then it formed </em><em>a cone</em><em> its radius is the horizontal leg of the triangle and its height is the vertical lege of the triangle</em>

<em />

In the given figure

∵ Triangle TRE is a right triangle

∴ The horizontal leg is RE

∴ The vertical leg is TR

∵ The triangle is rotated around the horizontal leg RE 360°

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3 years ago
Simplify square root of 49/81
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Answer:

\frac{7}{9}

Step-by-step explanation:

\sqrt{49/81} = \sqrt{49} ÷ \sqrt{81} = \frac{7}{9}

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3 years ago
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