To find<span> the perimeter of the </span>quarter circle<span>, </span>find<span> the circumference of the whole </span>circle<span>, divide by 4, and then add the radius twice. To </span>find<span> the radius when you are given the </span>area<span> of the </span>quarter circle<span>, multiply the given </span>area<span> by 4, then plug this number in for A into the formula A = pi * r^2 and then solve for r.</span>
The answer is 12 3/4 cm^2
Since, each row has one more log than the row above it
so, this is arithematic sequence
We are given that
First row is
so,
Last row is
so,
Each row has one more log than the row above it
so,
now, we can find number of rows
we can plug values
we can solve for n
now, we can find total number of logs
now, we can plug values
So,
Number of logs in the pile are 119........Answer
Assuming that 666 is supposed to be 6, here is how we would solve the problem:
We can set up a system of equations to describe the situation using b for Ben's age and i for Ishaan's age:
b = 4i
(b - 6) = 6(i - 6)
Simplify the second equation:
b - 6 = 6i - 36
b = 6i - 30
Now we have two equations solved for b. We can set them equal to each other to solve for Ishaan's age:
4i = 6i - 30
-2i = -30
2i = 30
i = 15
Ishaan is 15 years old.
