9514 1404 393
Answer:
shaded/square = (50π cm²)/(400 cm²) = π/8
Step-by-step explanation:
The quarter circle has area ...
A = (1/4)(πr²) = π/4(20 cm)² = 100π cm²
The half-circle has area ...
A = (1/2)(πr²) = π/2(10 cm)² = 50π cm²
Then the area of the shaded portion is ...
shaded = 100π cm² -50π cm² = 50π cm²
__
The area of the square is ...
A = s² = (20 cm)² = 400 cm²
Then the ratio of interest is ...
shaded/square = (50π cm²)/(400 cm²) = π/8
0.6723
I'm not sure about the answer but....?????
Answer: Option c.
Step-by-step explanation:
To find surface area, add two area of circle and curved surface area.
Curved surface area formula = 2*π*r*h, where r = radius, h = height.
So total surface area will be,
2π*r ^ 2 + 2*π*r*h
Remember that radius(r) = 4 because diameter is given in figure.
Answer:
We need to find the unit rates for the fruit. To do this, divide the cost by the number of pounds
Grapefruit:
cost/pounds
$3/6 pounds
3/6=0.5
0.5 per pound
Apples:
cost/pounds
$2.65/5 pounds
2.65/5=0.53
0.53 per pound
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