The pictures are proportional, 11*3 is 33 and 8.5*3 is 25.5
<u>Explanation</u>
Find the Least Common Multiple of the denominators (which is called the Least Common Denominator).
Change each fraction (using equivalent fractions) to make their denominators the same as the least common denominator.
Then add (or subtract) the fractions, as we wish!
<u>Credit to mathisfun.com!</u>
To find the area of the shape which is the shaded area I assume: we must find the sum of the area of the rectangle AECD and triangle BEC
Total Area =area of rectangle AECD + triangle BEC
= 9 * 15 + (1/2) * 6 * 15 = 136 + 45 = 181 square milimeters
Hope that helped!
C= 11pi
⇒ d* pi= 11* pi
⇒ d= 11
The diameter is 11~