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Grade 11Analytical Geometry

what are the coordinates of orthocenter?

Profile image of shubham purwar
11 Years agoGrade 11
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1 Answer

Profile image of Latika Leekha
11 Years ago
Hello student,
Let ABC be the given triangle and AD, BE and CF be the three altitudes.
Now, to calculate the orthocentre,
Step 1: Firstly, find the slopes of sides AB, BC and CA using the formula
\frac{y_{2}-y_{1}}{x_{2}-x_{1}}
Step 2: Calculate the slopes of altitudes AD, BE and CF which are perpendicular to BC, CA and AB respectively.
Slope of altitude = -1/ slope of opposite side
Step 3: By suing the point slope form, calculate the equation for the altitudes with their respective coordinates. The point slope formula is given as y – y1 = m (x – x1)
Step 4: Finally, by solving the equations of any two altitudes, we can get the orthocentre of the triangle.