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The trig beacons are basically points on a grid. Let's name these beacons (1), (2), (3). They all have coordinates of the form (x,y).
Using the distance formula, √[(x2-x1)2+(y2-y1)2], calculate the distance between (1) and (2) [call it A], (1) and (3) [call this B], (2) and (3) [call it C].
Calculate the semiperimeter, which would be (A+B+C)/2. Call this S.
Using Heron's formula, the area of the triangle is √[S(S-A)(S-B)(S-C)].
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How do you calculate the perimeter of a triangle?
-- Measure or calculate the length of one side. -- Measure or calculate the length of another side. -- Measure or calculate the length of the only remaining side. -- Add the three numbers. The sum is the perimeter of the triangle.
Dina changes a right triangle by making a translation how many angles dose the triangle now have?
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A triangle with three sides?
A triangle with three sides is a polygon.
