Questions on Geometry: Geometric formulas answered by real tutors!

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Question 241114: Solve the proportion x-2/4=x+4/2
Click here to see answer by unlockmath(106)

Question 238159: The volume of a box is 32m^3, to reduce cost the box is to have minimum surface area. It is a square box with no top. What dimensions(height, length, width) should the box have?
Click here to see answer by ankor@dixie-net.com(6684)

Question 238005: 4. ABCD is a rectangle. Find mB.

A. 45°
B. 90°
C. 100°
D. 180°
5. ABCD is a rectangle. AD = 3 and AB = 10. Find CD.

A. 3
B. 6
C. 10
D. 20
6. ABCD is a rectangle. AC = 12. Find BE.

A. 6
B. 8
C. 10
D. 12

7. Find the value of x so that ABCD is a rectangle, if AD = 5x – 6 and BC = 3x + 4.

A. 3
B. 4
C. 5
D. 6

Click here to see answer by jsmallt9(588)

Question 237562: a-=p+prt, for p
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Question 237563: s=n/2(a+1), for a
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Question 237564: s=2πr(r+h), for h
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Question 237565: m-g/t=r+s, for t
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Question 237567: f=gm-t/m, for g
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Question 237568: f=gm-t/m, for g
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Question 237572: s=a+2b/3b. for b
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Question 237596: s=2πr(r+h), for h
Click here to see answer by nyc_function(260)

Question 237598: r=v2pL/a, for p
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Question 237570: a/c=n=bn, for n
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Question 237569: c=5/9(f-32), for f
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Question 237561: s=1/2gt2 ,for g
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Question 235904: the 7th term is 21 and the 10th term is 34, find the 25th term
Click here to see answer by stanbon(26249)

Question 234695: please explain how i would do this problem the directions are find the unknown dimension. A triangle has an area of 5 square meters and a base of 2x. what is the height of the triangle in the terms of x. also what does in the terms of x mean
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Question 234629: M(-6,2) is the midpoint of line RS. If S has coordinates (0,7), find the coordinates of R.
Click here to see answer by rfer(2680)

Question 234482: a circular island of diameter 100 yards is surrounded by a concentric circular moat whose area equals that of the island .which of the following best approximates the width of the moat ?
a) 20 yards b) 30 yards c) 50 yards d)70 yards e) 100 yards
Click here to see answer by checkley77(7032)

Question 233844: The wheels of a car have radius 15 in, and are rotating at 800 rpm. Find the speed of the car in mi/h
Click here to see answer by Alan3354(6042)

Question 233844: The wheels of a car have radius 15 in, and are rotating at 800 rpm. Find the speed of the car in mi/h
Click here to see answer by checkley77(7032)

Question 233842: Find the exact value of tan(7pi/12)

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Question 232854: what would the answer be for
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Question 230466: Find the length of the segment with endpoints J(0,3) and M(4,6).
Click here to see answer by texttutoring(35)

Question 230288: A 9-by-12 rectangular picture is framed by a border of uniform width. Given that the combined area of picture plus frame is 180 square units, find the width of the border
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Question 229601: Find the volume of a cylinder whose radius is (k+7) inches and whose height is (2k) inches.
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Question 228467: the part of (blank) that has a beginning point and ending point is a line segment.
so like what would be the blank word?
Click here to see answer by stanbon(26249)

Question 228467: the part of (blank) that has a beginning point and ending point is a line segment.
so like what would be the blank word?
Click here to see answer by rapaljer(3610)

Question 228343: I need assistance with the following problem:
Solve and check.
4(x+9) + x(x-1) = x(6+x)
Click here to see answer by drj(1380)

Question 228138: The area of a rectangle is 54 square units. Find the length and the width of the rectangle.
L = x+2 W = x-1
My work so far leads to me find that this unable to be factored to solve for x
(x+2)(x-1)=54
x2+2x-x-2=54
x2+x-2=54
x2+x-2-54=0
x2+x-56=0
(x-8)(x+7)=0
x=8 x=-7
can't use -7 so omit
x=8
back to original problem/formula
x+2 would read 8+2 = 10
x-1 would read 8-1= 7
IS THIS CORRECT??
Thank you for your help!
Click here to see answer by checkley77(7032)

Question 227704: If the ratio of the edge of two cubes is 2:3. What is the ratio of the volumes?

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Question 227704: If the ratio of the edge of two cubes is 2:3. What is the ratio of the volumes?

Click here to see answer by jsmallt9(588)

Question 227360: solve the formula for the variable indicated
A = 1/2 bh for b
Click here to see answer by rapaljer(3610)

Question 227259: When working with addition and subtaction property of equality how do you which is additon and which is subtraction? Ex. If XY=ZW, then XY-RS=ZW-RS
Click here to see answer by solver91311(5064)

Question 224958: WHICH IS LARGER A FIVE FOOT TALL SQUARE OR A FIVE FOOT TALL CIRCLE
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Question 224848: If a triange has a base of 15 feet and a height of 13 feet, how many feet is the slope?
Click here to see answer by LtAurora(115)

Question 224625: what is the perimeter and the area of a rectangle with length (x+3) and width 7?
I have tried to do this but the x is confusing me .. like for the perimeter would it be x + 20 .. or 20x?.
Click here to see answer by mestrydilip(9)

Question 219980: If a person wants the flat ceiling in his tool shed to be parallel to the floor. Two of the posts are 80" long and two are 78" long. Will the ceiling be parallel to the floor? (I guessed no because of the different lengths of the poles), and What must the person do to make the ceiling parllel to the floor? (Would I put an 80" post across in the corner across from the other 80" post and the same with the 78" posts)?
Click here to see answer by rfer(2680)

Question 217513: The perimeter of a rectangle is 50 m. The width of the rectangle is 5m less than the length. Find the length and width of the rectangle.
Click here to see answer by stanbon(26249)

Question 217361: half of a 16 in diameter circle fits snugly inside a rectangular box, how many square inches larger is the area of the box than the area of the circle?
Click here to see answer by nerdybill(2446)

Question 217114: A goat is tethered to the side of a square 10ft x 10ft shed. The tethering rope is 18 feet long and tied to a post in the middle of one of the sides. What ist he total area available for the goat to graze? Assume the shed is in the middle of a 100ft x 100ft field.
Click here to see answer by jim_thompson5910(13785)

Question 216453: Consider the equation for the area of a trapezoid.
A=1/2(a+b)h
solve for a.
Click here to see answer by rfer(2680)

Question 211352: what is the slope and y-intercept form for this problem: 3x-4y=12
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Question 216050: X3 + 3x2 - +7 divided by X+1=
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