Answer:
D
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
To convert from polar to rectangular form
• x = rcosΘ , y = rsinΘ
• r =
⇒ r² = x² + y²
Given
r = 8cosΘ
r = 8 ×
( multiply both sides by r )
r² = 8x, hence
x² + y² = 8x ⇒ D
Answer:
Areas of the colored parts are equal
Step-by-step explanation:
Given Mauricio divided two identical rectangles into equal parts.
Now given Mauricio colored one part of each rectangle. we have to tell about the true statement of colored parts.
Two identical rectangles means the rectangle having equal areas. He divides these two into equal parts and shaded one of each part
Let area of rectangle is x 
∴ Colored part area =
→ (1)
Similarly, other rectangle area identical to above rectangle is x 
∴ Colored part area =
→ (2)
From above eq (1) and (2), we get
Areas of the colored parts are equal which is equals to
Use the base of the triangle as the diameter, which in this case is 16, divide it by 2, which is 8, and then square it, which is 64, and multiply by Pi (64 times Pi is 200.96) so you can find the area of the whole circle which is 200.96ft^2. Since this is an equilateral triangle, the height might be 16, so using the area of a triangle, A=BH times 1/2, We multiply 16 by 16 which is 256. 256 times 1/2 is 128. So the area of the triangle will be 128ft^2. We then subtract our areas, 200.96-128 which is 72.96. Then therefore the area of the circle will be 72.96ft^2. I may be wrong, but this is what I think.