Answer:

Step-by-step explanation:
step 1
Find the area of the circle with a diameter of 9 units
we know that
The area of a circle is equal to

we have
----> the radius is half the diameter
substitute


step 2
Find the area of a square with a side length of 8 units
we know that
The area of the square is

where
b is the length side of the square
we have

substitute

step 3
Equate the areas

solve for 

Answer:
15) diagonals are congruent in rectangles and squares; looks like a square
16) SW = 31
Step-by-step explanation:
since diagonals are congruent in rectangles then 'a+30' equals '2a+29'
a + 30 = 2a + 29
30 = a + 29
a = 1
SW = WU = TW = WV
Answer:
149
Step-by-step explanation:
just got it right on the quiz
Since the length OQ = cos θ is the x-coordinate of P, and PQ = sin θ<span> i</span>
Answer:
x=5/2,3/2
so 5/2 is the maximum height. (2.5)
Step-by-step explanation: