Fraction= 3/4 decimal=[answer] percent=[answer]
2 answers:
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-2/9 is -0.222....
-0.222... rounded is -0.22.
so it is -0.22.
when a decimal goes on, u can put a bar over(simpily draw a line on top the first few numbers) or round.
-0.222... rounded is -0.22.
so it is -0.22.
when a decimal goes on, u can put a bar over(simpily draw a line on top the first few numbers) or round.
Octogon
sides=4
draw lines from the outside angles to the center so they form 8 equal triangle sections
find the area of each triangle and multiply by 8
area of triangle=1/2 base times height
base=4
the height is the distance from the center of one side of the octogon, to the center=5
so area=4 times 1/2 times 5=4 times 5=10
8 triangles so 8 times 10=80
the answer is 80cm^2
the diagram included below shows area for a pentagon
sides=4
draw lines from the outside angles to the center so they form 8 equal triangle sections
find the area of each triangle and multiply by 8
area of triangle=1/2 base times height
base=4
the height is the distance from the center of one side of the octogon, to the center=5
so area=4 times 1/2 times 5=4 times 5=10
8 triangles so 8 times 10=80
the answer is 80cm^2
the diagram included below shows area for a pentagon