Question
Do in Java language (Inside The Triangle) Suppose a right triangle is placed in a plane as shown in the book. The right-angle point is
Do in Java language (Inside The Triangle) Suppose a right triangle is placed in a plane as shown in the book. The right-angle point is placed at (0, 0), and the other two points (x,y) are placed at (200, 0), and (0, 100). Write a program that prompts the user to enter a point with x- and y-coordinates and determines whether the point is inside the triangle.
Here is the equation for finding the area of a triangle.
abs((x1*(y2-y3) + x2*(y3-y1)+ x3*(y1-y2))/ 2.0 );
Here is some pseudocode that may help.
check whether the point P(10, 15)
lies inside the triangle formed by
A(0, 0), B(20, 0) and C(10, 30)
Calculate area of triangle ABC
Calculate area of triangle PBC
Calculate area of triangle PAC
Calculate area of triangle PAB
Check if sum of PBC, PAC and PAB is same as ABC
SAMPLE RUN #1: java InsideTheTriangle
Enter a point's x and y coordinates: 200 0 The point is in the triangle
SAMPLE RUN #2: java InsideTheTriangle
Enter a point's x and y coordinates: 900 0 The point is NOT in the triangle
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