The circumference of a circle is 100.48 millimeters. What is the circle's radius?
1 answer:
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Step 1
Find the area of one equilateral triangle
Applying the law of sines
in this problem
a=b=7 cm
C=60 degrees
so
cm²
Step 2
To calculate the area of the hexagon multiply the area of one equilateral triangle by
cm²
therefore
the answer is the option
73.5 sqrt 3cm²