Formula for the area of a circle:
A = πr² [A = area r = radius]
The radius is
(half) the diameter. Since the diameter = 10cm, the radius = 5cm.
You know:
r = 5cm Substitute/plug this into the equation
A = πr²
A = π(5)²
A = 25π -> A = 25(3.14)
A = 78.5cm²
Answer:
(8-n=4)/4 click brainliest please and click thanks
Step-by-step explanation:
Answer:
-2p² - 9pq + 6q²
Step-by-step explanation:
Add the like terms
p² + - 3p² = -2p²
-7pq + - 2pq = -9pq
-q² + 7q² = 6q²
Answer:
-6x
Step-by-step explanation:
Answer:
3/68
Step-by-step explanation: