Three balls will be needed. You will need 70 pieces of the 40 cm string so 70 multiplied by 40 equals 2800. Next you need to convert the 2800 cm into meters and 2800cm= 28 meters, so if each ball of string is 10 meters long you will need 3 of them which will give you 30 meters so you will have enough with a little extra. Hope this helped!
<span>Sum of Interior Angles: Formula: (n-2) * 180
-Pentagon: 540</span>°<span>
-Hexagon: 720</span>°<span>
-Octagon: 900</span>°<span>
-Nonagon: 1260</span>°<span>
-Decagon: 1440</span>°<span>
-Dodecagon: 1800</span>°
Each interior Angle: Formula: [(n-2)*180] / n
-Pentagon: 108°
-Hexagon: 120°
-Octagon: 135°
-Nonagon: 140°
-Decagon: 144°
-Dodecagon: 150°
The sum of the exterior angles of each polygon stated above is equal to 360 degrees. Using the formula: (180-interior angle) * n
The central angle is formed by making a circle in the middle and divide it by the number of sides. Therefore, CA = 360 /n
-Pentagon: 72°
-Hexagon: 60°
-Octagon: 45°
-Nonagon: 40°
-Decagon: 36°
-Dodecagon: 30°
Answer:
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Step-by-step explanation:
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volume of sphere = V=(4/3)(pi)r^3
so V = (4/3) x 3.14 x 20^3 = 33,493.33 cubic cm
This is really going to be long.......... by using long division:
x^4 +7x³ -2x² -9x -3
______________________________
x+8 I x^5 +15x^4 +54x³ -25x² -75x -34
x^5 +8x^4
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7x^4 +54x³
7x^4 +56x³
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-2x³ -25x²
-2x³ -16x²
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-9x² -75x
-9x² -72x
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-3x -34
-3x -24
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-10
so the result is (x^4+7x³-2x²-9x-3) and -10/((x+8)
