Segment BD is an altitude of triangle ABC. Find the area of the triangle. Triangle ABC with altitude BD is shown. Point A is at 2, 1. Point B is at negative 1, 4. Point C is at 2, 6. Point D is at 2, 4. 7.5 9.5 10 15
@yana
http://learn.flvs.net/webdav/assessment_images/educator_geometry/v15/module06/0600_g13_q1.jpg
@YanaSidlinskiy
i gave the link to the triangle
@aum
The website isn't working.
well it gives the points in the question
idk how to make it work
@sweetsunray
could you help me?
@paki
area is 1/2 base x heigth
Turing we can't see the link because it belongs to an intranet (private internet)
ok well the points are on the problem
Segment BD is an altitude of triangle ABC. Find the area of the triangle. Triangle ABC with altitude BD is shown. Point A is at 2, 1. Point B is at negative 1, 4. Point C is at 2, 6. Point D is at 2, 4. 7.5 9.5 10 15
where it says triangle abc with altitude bd
Ok so you know the area of a triangle is the heigh * base / 2. You know the height. You can always draw the triangle, following the instructions. The height is 3. But you need to know the base too. You can get the base from the drawing, or use the characteristics of triangles such as |CD|/|BD|=|BD|/|AD|.
could you tell me the base since the height is 3
i dont understand the characteristics part
Please, I think this is an exercise where you draw the triangle. Draw an x and y-axis with equal squale. Put all the points as instructed and then connect them as ABC and BD. Just look at the drawing and you know the lengths.
idk how to do this
i tried graphing
how do you get the base?
Do you have paper with squares? Draw a neat cross. The horizontal line is called x-axis. The vertical line is called y-axis. Take the scale of 2 squares on each axis as 1. The right part of the axis next to the intersection of the two lines is all positive. To the left is negative x. Undeneath x-axis is y negative. Now indicate the point (2,1). This is the point where a pencil line through x=2 intersects with y=1. Do the same for the other points.
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