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Bad White [126]
2 years ago
12

a chord subtends an angle of 34 at the center of a circle of radius 4cm find the length of the chord (take =22/7)​

Mathematics
1 answer:
Yakvenalex [24]2 years ago
8 0

Answer:

2.34 cm

Step-by-step explanation:

From the question given above, the following data were obtained:

Angle at the centre (θ) = 34°

Radius (r) = 4 cm

Length of chord (C) =?

The length of the chord can be obtained as follow:

C = 2rSine(θ/2)

C = 2 × 4 × Sine(34/2)

C = 8 × Sine 17

C = 8 × 0.2924

C = 2.34 cm

Therefore, the lenght of the chord is 2.34 cm.

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The radius of a circle is 9 inches. What is the circle's area?<br> Use 3.14 for ​.
Anna007 [38]

Answer:

<u>254.34 in²</u>

Step-by-step explanation:

<u>Area of a circle</u>

  • A = πr²
  1. <u>r = radius of the circle</u>

<u>Solving</u>

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  • A = 3.14 x 81
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2 years ago
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Marvin wants to purchase a rectangular rug. It has an area represented by the expression 4x^2+64x+256. what is the length and wi
jasenka [17]

Answer: the length and width are

(x + 8) and (x + 8)

Step-by-step explanation:

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Area = 4x² + 64x + 256.

The factors in the factored expressions represent the length and width of the rug.

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x² + 16x + 64 = 0

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The two numbers are 8x and 8x. Therefore,

x² + 8x + 8x + 64 = 0

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7 0
3 years ago
24 x 12 1/2 x 12 3/4 what is the volume of the fish tank
hjlf

Answer:

The volume is 3825 cubic units

Step-by-step explanation:

To find the volume of the fish tank multiply out the dimensions.

We were given the dimensions as:

24 \times 12 \frac{1}{2}  \times 12 \frac{3}{4}

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We cancel out to get

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3 years ago
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astra-53 [7]
Let n be a number of balls: n = 14

In one pan you have 8 balls: 8n
In the other pan you have the rest of balls (14 - 8 = 6) along with a <span>weight of 20 grams = 6n + 20
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Now, just solve the equation:
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