Patrick B. answered • 5d

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OK suppose the triangle has vertex points on the graph at

(0,0)

(0,5)

(12,0)

The distance formula says, the measure of the legs are 5 and 12.

The pythagorean theorem says the hypotenuse is 13.

The area is therefore 1/2 * 5 * 12 = 30 and the perimeter is also 5+12+13 = 30 as well