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Tutors Answer Your Questions about Circles (FREE)
Question 92477: Let triangle ABC be an equilateral triangle with side length "s". Estimate the percent by which the area of the circle circumscribed about triangle ABC exceeds the area of the triangle.
So far I have recalled that the distance from the circumcenter of the triangle to a vertex is equal to the length of the radius of the circumscribed circle... but I haven't a clue where to go from here.
Click here to see answer by stanbon(26297)   |
Question 92596: Can you please show me how to find y?
[IMG]http://i112.photobucket.com/albums/n168/daddygirl411/math.jpg[/IMG]
i already know that x=8 because:
since the small triangle is a right triangle i can use the pythagorean theorem to find the missing length of triangle. 5^2-3^2=16 THE square root of 16 is 4. Sine x is 2x the length of the small triangle, i can conclude that x=8.
But i don't know how to get y!
can you please help me!
P.S. if the you don't see the picture of the circle then here is a url:
http://i112.photobucket.com/albums/n168/daddygirl411/math.jpg
Click here to see answer by jim_thompson5910(13794) |
Question 93066This question is from textbook 
: you are in charge of constructing a fence around the running track at a high school. the fence is to be built around the track so that there is a uniform gap between the outside edge of the track and the fence.
what is the maximum width of the gap between the track and the fence if no more than 630 meters of fencing is used?This question is from textbook
Click here to see answer by scott8148(3385)  |
Question 95177: 1. what is the circumference of a circle with a diameter of 30 centimeters?
2. for a botton to fit through its bottonhole, the hole needs to be the size of the botton's diameter. what size bottonhole is needed for a botton with a circumference of 9.42 centimeters?
3. The spoke of a wheel reaches from the center of the wheel to its rim. if the circumference of the rim of the wheel is 42 inches, how long is each spoke? round to the nearest hundreth.
Click here to see answer by checkley71(8405) |
Question 92770: A.a circular swimming pool has a radius of 12 feet what is the circumfrence? B.a square has sides that are 3 meters long.acircle is cut from the square, such that the radius of the circle is 1.5 meters long. what is the area of the material left over after the circle is removed?
Click here to see answer by edjones(3298)  |
Question 96731: Ri rides his bicycle to school every day.The diameter of his bicycle wheel is 70 cm when pumped full air.
a)What is the circumference of his bicycle when the wheel is pumped?
b) When the tire on rick's bicycle is flat, the diameter is only 60cm. What is the circumference?
c) Estimate how long the spokes are on rick's bicycle?
Click here to see answer by checkley71(8405) |
Question 105201: A bicycle wheel has a radius of 1.2ft. A complete rotation of the wheel equals the circumference of the wheel. Which expression shows the distance the bicycle will cover in 10 complete rotations?
A. (10 X 1.2) ft
B. (10 + 2.4 pie)ft
C. (10 X 2.4 pie) ft
D. (10 X 1.2pie) ft
Thanks again
Click here to see answer by edjones(3298) |
Question 106350: Please help me solve this equation: There is a square and its area is 252. The square has 9 circles in it and you need to find the area of the circles added together. Could u show me how to do the problem please A.S.A.P. Thank you
Click here to see answer by stanbon(26297) |
Question 107159: Flower Bed Find the area of a circular flower bed whose diameter is 6 meters (use 3.14 as and approximate value.
2. find the area of a triangle whose altitude is 7 ft and whose base is 22ft.
3. 18 less than a number is 23 what is the number
Click here to see answer by Annabelle1(69) |
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Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720
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