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Please help with geometry

Please help with geometry-example-1
User Groxan
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1 Answer

30 votes
30 votes

Explanation:

a) gradient= y2-y1/x2-x1

gradient of AB:

gradient=-4-1/2-3

=-5/-1

=5

gradient of BC:

=-5+4/7-2

=-1/5

b) as the priduct of both gradient is -1 ,both lines are perpendicular.

c) as we have seen lines are perpendicular so it is a right angled triangle.

User Carlos Quintanilla
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2.9k points