Find the area of a decagon with side of 4cm.
Find the area of a pentagon with side length of 10cm
Find the area of a hexagon with radius of 5in.
Just took this quick check 100% right
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To find the area of a decagon with a side length of 4cm, you can use the formula for the area of a regular polygon:
Area = (s^2 * n) / (4 * tan(pi/n))
In this formula, s is the side length of the decagon and n is the number of sides (which is 10 for a decagon). Plugging in the given values, we have:
Area = (4^2 * 10) / (4 * tan(pi/10))
Calculating this expression yields the area of the decagon.
Now, to find the area of a pentagon with a side length of 10cm, you can use a different formula:
Area = (s^2 * n) / (4 * tan(pi/n))
Using the same formulas as before but with different values, we have:
Area = (10^2 * 5) / (4 * tan(pi/5))
Calculating this expression will give you the area of the pentagon.
Lastly, to find the area of a hexagon with a radius of 5in, you can use a different formula:
Area = (3 * sqrt(3) * r^2) / 2
In this formula, r is the radius of the hexagon. Plugging in the given value, we have:
Area = (3 * sqrt(3) * 5^2) / 2
Calculating this expression will give you the area of the hexagon.
An octagon with the perimeter of
117mm