A triangular field has boundaries of length 170 m, 195 m and 210 m. Find the size of the largest interior angle of the field.
1 answer:
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Answer:
x=7
Step-by-step explanation:
Find slope first
m is undefined- so it is a vertical line
x=7
I first plotted the three points and from from their position it was clear which pairs to join to start a rectangle.
At this point you need to check to make sure the angle at B is a right angle. Find the slope of the line segments AB and BC and check that the product of the slopes is -1.
From the diagram you can now see where the fourth point D has to be. If AB and CD are parallel then D must be 3 units to the left of C and 2 units above C. Find the coordinates of D and then check by finding the slopes of CD and DA and showing that the angle at D is a right angle.
I hope this helps
