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Triangle ABC is reflected over the line y = x. Triangle ABC has points

0 votes

February 8th, 2013 08:04
in Introduction to the Science and Engg by christina (Yale University (CT), Computer science)

Triangle ABC is reflected over the line y = x. Triangle ABC has points A (10, 2), B (8, 3), and C (6, 4).?

whats the B coordinate of this?

6 Answers
0 votes

March 6th, 2013 11:19
sharmistha_98 (Dhirubhai Ambani Institute of Information and Communication Technology, Thermodynamics)
"(sigh) Geometry: the study of mathematical shapes and their relationships Geography (where you posted this): The study of natural features and political divisions"

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0 votes

May 15th, 2013 11:15
ekbal (Biju Patnaik University of Technology, Rourkela, Computers and algorithms)
Since you just said A = (2,3), I think you probably mean "what's A'"? The simplest way to figure that out is to take a piece of graph paper (you can make some yourself using lined paper and drawing vertical crossbars) and drawing the X and Y axes, graphing your triangle and then graphing its reflection. That should allow you to see where A' is situated.

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May 16th, 2013 09:55
parivita (Bengal Engineering & Science University, computer scienece)
"The sum of the three angles in triangle ABC is equal to 180°. Hence 72 + angle ACB + angle ABC = 180 In the given isosceles triangle, angles ACB and ABC have equal measure. Hence 72 + 2 angle ABC = 180 2 angle ABC = 180 - 72 = 108 angle ABC = 54°"

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May 27th, 2013 13:01
shailendra_g01d (Agra University, Artifical intelligence)
"The three sides of an equilateral triangle have equal lengths. If x is the length of one side of an equilateral triangle, then its perimeter is equal to 3x. Hence 
 
3x = 210 
 
x = 70 cm"

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0 votes

May 31th, 2013 08:42
anandi (KIIT University, Computer sciences)
"When a point of coordinates (x , y) is reflected on the x axis, its y coordinates changes sign and the coordinates become (x , - y). Hence when the vertices of the given triangle are reflected on the x axis, they become. 
 
(1,-(2)), (2,-(-3)) and (4,-(-1)) 
 
Simplify 
 
(1,-2), (2,3) and (4,1)"

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0 votes

June 1st, 2013 12:32
padmal (National Institute of Industrial Engineering, Computer sciences)
"In similar triangles, the corresponding sides have lengths in the same proportion. If h is the hypotenuse of the small traingle and H is the hypotanuse of the larger traingel, then 
 
8 / 15 = h / H 
 
We now use Pythagora's theorem to find h. 
 
h2 = 82 + 62 = 100 
 
Solve for h: h = 10 
 
Substitute h in the above equation to find H 
 
8 / 15 = 10 / H 
 
Cross multiply 
 
8H = 150 
 
H = 18.75
 
"

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