Answer:
The length side of the triangle is
Step-by-step explanation:
we know that
The equilateral triangle has three equal sides and three equal internal angles of measure of 60 degrees each.
Let
b------> the length side of the equilateral triangle
Applying Pythagoras theorem
5*
√ 197
≈
14.03566884
So your answer should be 15 units
the area is 286
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