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I have a small question, If ABC froms a right angled triangle then the height should be either AB or BC or AC, then how did D come into the picture. I think this can be possible only when the point D coincides with any one of A, B or C.
Could you explain if i got this wrong.
Thanks
x2suresh wrote:
dzyubam wrote:
Tvisha wrote:
Distinct points A , B , C , D form a right triangle ABC with a height BD. What is the value of AB times BC?
1. AB=6 2. The product of the non-hypotenuse sides is equal to 24
could any one explain this?
I've added the missing text.
Thanks dzyubam for correcting the question.
Answer should be B. AB*BC = itself is product of non-hypotenuse sides.
Guys , I think I cldnt explain my problem. Im not talking of OA. OA is B indeed 2 which i agree. My question is why is point D given in the question. there is no need for this. In case its a triangle, there have 2b only 3 points na? also BD height is confusing me.
Guys , I think I cldnt explain my problem. Im not talking of OA. OA is B indeed 2 which i agree. My question is why is point D given in the question. there is no need for this. In case its a triangle, there have 2b only 3 points na? also BD height is confusing me.
D is given to make question tough and intresting. Also it gave a twist in the question. The way this question is designed, D is required and correctly signals the right angle as well. _________________
Guys , I think I cldnt explain my problem. Im not talking of OA. OA is B indeed 2 which i agree. My question is why is point D given in the question. there is no need for this. In case its a triangle, there have 2b only 3 points na? also BD height is confusing me.
D is given to make question tough and intresting. Also it gave a twist in the question. The way this question is designed, D is required and correctly signals the right angle as well.
BD is the Height to the Hypotenuse. In the right trinagle the non hypotenuse sides are the other heigts of the triangle. It is given in order to identify the Hypotenuse.
This was a poorly written question. It could easily be argued that AB and BC are not "non-hypotenuse sides" because they are the hypotenuses of triangles ABD and BDC, respectively. BD is the only side in the entire problem that is not the hypotenuse of any triangle. Overall, very confusing. Could be improved with either an accompanying picture or with clarifying language in the problem. It was an easy problem - understanding the information they were giving you was ambiguous at best.
This was a poorly written question. It could easily be argued that AB and BC are not "non-hypotenuse sides" because they are the hypotenuses of triangles ABD and BDC, respectively. BD is the only side in the entire problem that is not the hypotenuse of any triangle. Overall, very confusing. Could be improved with either an accompanying picture or with clarifying language in the problem. It was an easy problem - understanding the information they were giving you was ambiguous at best.
To me question stems is looking very clear:
we know that triangle ABC is a right triangle, we know that the 4 points are distinct. That means that BD is the Height to the hypotenuse AC, you don't even need to draw a triangle to figure that.
Distinct points A ,B, C,D form a right triangle ABC with a height BD . What is the value of AB times BC ? 1. AB=6 2. The product of the non-hypotenuse sides is equal to 24
I got so confused with why D is listed and if the order can be A,B, C or could be different. Is this intentional?
Distinct points A ,B, C,D form a right triangle ABC with a height BD . What is the value of AB times BC ? 1. AB=6 2. The product of the non-hypotenuse sides is equal to 24
I got so confused with why D is listed and if the order can be A,B, C or could be different. Is this intentional?
Is it B? Here is how I understand it: A triangle has 3 heights. In right triangle, the two of them are the sides of the triangle and a third one is on the right angle to the hypotenuse. In this question, it is this third one. If it wouldn't be the case, the question would use two of the letters from "ABC".
"If distinct points A, B, C, and D form a right triangle ABC with a height BD, what is the value of AB times BC?"
The language of this question appears at odds with the author's intent.
With respect to a triangle, the word "height" really only means "a line segment perpendicular to a triangle's edge, of a length equal to the distance of that edge from the opposite vertex." Height BD may or may not land D on the perimeter of the triangle. A line segment labeled "height" may just as easily be outside the triangle as inside the triangle, and is indeed outside the triangle in one example from a Grade 6 math text. "Height" means whatever helps you calculate the area of a triangle most easily; GMAC's OG12 does not use this term.
The term "altitude" would make the answer explanation work. From OG12 p.130: "The altitude of a triangle is the segment drawn from a vertex perpendicular to the side opposite that vertex." D must then lie on the perimeter of right triangle ABC, and B must be opposite the hypotenuse AC for D to be distinct from A and C.
Since GMAC does apparently regard "altitude" as fair game on the exam, and even gives the area of a triangle as "0.5*(base plus altitude)" on OG12 p.130, is there any chance of having this question amended to refer to "altitude BD" rather than "height BD" for future M04 takers?