An estimate for the number of ducks would be 62.
There were 30 the first day.
The second day, 8 of those 30 were there as well, so we subtract that from the 40 ducks and get 32.
Add 30 and 32 to get our estimate.
I had to look for the figure and here is my answer:
Given the circle attached to this question, the area of the sector AOB is the 60 of the fractional part of the area of the circle O. Since the whole circle is 360, this would be 60/360. To simplify this, we would arrive to the final answer of 1/6. Hope this helps.
Irregular hexagons (Meaning 6 sides, irregular is optional) and quadrilaterals.
The answer would be Isosceles Acute.
Isosceles is when the triangle has two sides of equal length.
And since each of the corners are acute, it would be isosceles acute.
So basically what you have to do is
