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Example 1 : Do the points (3, 2), (-2, -3) and (2, 3) form a triangle? If so, aethe conversetype of triangle formed.theorem, LD |
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Answer» A=(3,2)b=(-2,-3)c=(2,3)distance²=(x2-x1)²+(y2-y1)²ab²=(3--2)²+(2--3)² = 25+25ab=√50ac²=(3-2)²+(2-3)² =1+1ac=√2bc²=(2--2)²+(3--3)² = 16+36bc= √52if this triangle is a right angled triangle..bc²=ab²+ac²(Pythagoras theorem52=50+2 so it is a right angled triangle |
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