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larisa86 [58]
2 years ago
10

Which expression gives the length of JK in the triangle shown below?

Geography
1 answer:
Ann [662]2 years ago
7 0
Perimeter = 3x. Area = x^2 * sqrt(3)/4. Explanation of area:. You can divide an equilateral triangle into 2 right triangles, each with a common side we will call y.. Area = area of first right triangle + area of second right triangle = (x/2)*y/2 + (x/2)*y/2 = xy/2. Now: y^2 + (x/2)^2 = x^2 so y…
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