Tutors Answer Your Questions about Geometry Word Problems (FREE)
Question 715391: Could you please help me with this geometry problem?
Problem: In triangle ABC, angle A is 5 times angle B, and angle C is 16 degrees less than angle B. What are the measures of the three angles?
My attempt: I tried to figure this problem out by forming an equation. I did A5=B
and got B/5. I took B/5 and tried the equation C- 16 degrees= B/5. I then multiplied 5 by each variable. I got 5c-80 degrees= B. I divided 5c and b by 5 and ended up with c-80 degrees= B/5... Here i got lost.. I know that i'm doing this wrong. I don't remember how to solve this problem...
Any help you could provide would be greatly appreciated!
Click here to see answer by KMST(5328)  |
Question 715629: what is the geometric concept suggested by each.
1.pencil
2.beam of light
3.edge of a box
4.clothesline
5.cover of a book
6.tip of a pencil
7.top of a table
8.speck of dust
9.edge of this page
10.a sheet of paper
11.sunlight
12.table cloth
13.intersection
14.tip of a ballpen
15.floor
Click here to see answer by KMST(5328)  |
Question 715803: When Bully folds a square piece of paper in half either horizontally or vertically, the resulting rectangle has a perimeter of 39 cm. In square centimeters, what is the area of the original square piece of paper that Bully folded? What are the dimensions of the rectangle and the original square?
Click here to see answer by josmiceli(19441)  |
Question 717341: Level C
You have designed a picture that is shaped as a square. The
dimensions of your picture are 6 inches by 6 inches. You want
to make it into a poster with dimensions 13 inches by 13
inches. The duplication machine has three settings, one that
reduces the linear measure by a factor of 75%, one that
enlarges linear measure by a factor of 140% and one that just
makes identical copies or applies the factor of 100%. How
many multiple enlargements or reductions will you need to
make in order to create a poster that has its sides 13 inches
long (accurate within five-hundredths)? Explain what setting
was used and how that changed the measurements of the copy
for each step in the process.
Click here to see answer by lynnlo(4176) |
Question 717706: A concrete walk of uniform width is to be built around a circular pool, as shown in the figure. The radius of the pool is 11 meters, and enough concrete is available to cover square meters. If all the concrete is to be used, how wide should the walk be?
Click here to see answer by josgarithmetic(39617) |
Question 717506: 25 inch piece of steel is cut into 3 pieces so the second piece is twice as long as the first piece and third piece is 1 inch more than 5 times the length of the first piece. What are the length of each piece?
Click here to see answer by jndarrell(58) |
Question 718019: a open box is to be constructed from a square piece of sheet metal by removing a square of side 6 feet from each corner and turning upp the edges.if the box is to hold 864 cubic feet,what should be the dimensions of the sheet metal?what is the length of a side of the square piece of sheet metal?
Click here to see answer by lynnlo(4176) |
Question 718019: a open box is to be constructed from a square piece of sheet metal by removing a square of side 6 feet from each corner and turning upp the edges.if the box is to hold 864 cubic feet,what should be the dimensions of the sheet metal?what is the length of a side of the square piece of sheet metal?
Click here to see answer by josgarithmetic(39617) |
Question 718343: There is an aquarium in the shape of a cube that measures 3 feet on each edge. The aquarium has a screened lid for the top. What is the surface area of the aquarium, including the lid?
I know that surface area = (2 x l x w) + (2 x l x h) + (2 x w x h); thus
(2 x 3 x 3) + (2 x 3 x 3) + (2 x 3 x 3) = or 18 + 18 + 18= 54 square feet.
I did this similar problem, did the same formula and got it wrong. "Josh keeps his pet lizard in a terrarium with a glass floor and 4 glass walls. For a roof, it has a screen panel. What is the total surface are of the glass floor and walls? By how much does the surface area increase if you include the screened roof?" dimensions are l=80cm w=40cm and h=50cm. I got 18,400 sq. cm....but I don't know about the whole lid thing. Thanks for any help.
Click here to see answer by josgarithmetic(39617) |
Question 718533: A square is transformed into a rectangle by decreasing the length of two of its parallel sides by 6 centimeters, and by decreasing the length of its other two parallel sides by 5 centimeters. If the area of the rectangle is 6 square centimeters, find the set of all possible lengths of the sides of the original square.
Click here to see answer by josgarithmetic(39617) |
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