X=18Plug in the numbers to get 72 + 108=180
Answer:
Part 1) The area of the shaded region is
Part 2) The area of the shaded region is
Step-by-step explanation:
Part 1) Figure N 1
I assume that the figure ABCD is a square
we know that
The area of the shaded region is equal to the area of the square ABCD minus the area of semicircle BC plus the area of semicircle AD
therefore
The area of the shaded region is equal to the area of the square ABCD
The area of the square is
Part 2) Figure N 2
I assume that the triangle ABC is a right isosceles triangle
so
AB=BC
AB ⊥ BC
The area of the shaded region is equal to the area of triangle plus the area of semicircle
A) <em>Find the area of the triangle ABC</em>
The area of triangle is
substitute
B) Find the area of semicircle
The area of semicircle is equal to
we have
-----> the radius is half the diameter
substitute
therefore
The area of the figure is equal to
Answer:
<u>22.73%</u> of ounces Isabella has left of her cola.
Step-by-step explanation:
Given:
Isabella has a 22 ounce cola. She drinks 17 ounces.
Now, to find the percentage of ounces Isabella has left of her cola.
Total ounces of cola = 22.
Ounces of cola Isabella drink = 17.
So, the ounces of cola she left:
<em>Total ounces of cola - ounces of cola Isabella drink.</em>
<u><em>Thus, 5 ounces of cola she left.</em></u>
Now, to get the percentage of cola she left:
<u>Rounding the percentage to the nearest hundredths is 22.73%.</u>
Therefore, 22.73% of ounces Isabella has left of her cola.