The area of any circle is (pi) x (radius)² .
The area of the WHOLE circle in the question is
(pi) x (2.5 cm)²
= (pi) x (6.25 cm²) .
The full circle is made by 360° of central angles.
90° of central angle makes a pie-wedge (sector)
that's exactly one fourth of the circle, so its area
is one fourth of the area of the whole circle.
Area = (1/4) (pi) (6.25 cm²)
= (0.25) (3.14) (6.25 cm²)
= 4.906 cm² .
Rounded to the nearest tenth: 4.9 cm² .
Answer:
shirt
Step-by-step explanation:
Answer:
10178.7602
Step-by-step explanation:
Volume of cylinder= π·r^2·h = π·9^2·40 ≈ 10178.7602
if 18 is the diameter than 9 would be the radius. to make the formula easier.
The probability of winning the gift card in the first place is always 1/8 no matter how many people have spun the gift card. That being said, by the same principal, the change of them both winning a gift card is 2/16 which reduces to 1/8. So the probability stays the same no matter what. If there was a limited number of gift cards, the probability would change with each spin and each win. But it didn't say the number of cards available changes, just that it stays 1/8.
Answer:
Heyo
Step-by-step explanation:
You on??