Method 1: In order to find out the area of an octagon with a radius of 4 feet, we have to split the whole figure into 8 equal isosceles triangles.
Therefore,
We will find out the area of one triangle and multiply the area with 8 to, figure out the area of the whole octagon there are 8 similar triangles and all of them will have the same area.
Method 2: From method 1, it would take time as there are too much of calculation, therefore we would go for the shortcut using the formula:
Area = 2√2 × r²
where r<span> is the radius of the octagon.
Substituting the values,
We get:
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Area = 2√2 × 4²
Area = 2√2 × 16
Area = 2× 1.41 × 16
Area = 2.828 × 16
Area = 45.25
Rounded to the nearest tenth:
Area = 45.3 ft²
Answer:
a-1 would still be positive if not exactly on 0
Step-by-step explanation:
The sequence is 6+8+10+12 with 6 being the first number of the sequence.
2.6 feet per step is the answer
Simplify 8/10
(4*2)/(5*2)
2/2=1
Thus,
8/10=4/5
Now, compare 4/5 and 3/5.
Hope this helps!