Answer:
4π
Step-by-step explanation:
the radius is 4/2=2 yards
circle's area is π*2^2=4π
I think it's B because irrational numbers are always repeating
Answer:7 mins
Step-by-step explanation:
47 minus 19 equals 28 4 times 7 equals 8
The area of a sector is 339.336 cm²
The area of a sector is defined to be as the region of space bounded by a boundary from the center of the circle.
It can be determined by using the formula:
Given that;
- Radius r = 18 cm
- Angle θ = 120°
Then. the area of the sector can be calculated as:
A = 339.336 cm²
Learn more about the area of a sector here:
brainly.com/question/7512468?referrer=searchResults
Answer:
<h2>radius = 8</h2>
Step-by-step explanation:
NOTE ================================
EQUATION OF A CIRCLE with center (a , b) and radius r :
(x - a)² + (y-b)² = r²
……………………………………………
x² − 14x + y² = 15
⇔ x² − 2×7x + 7² − 7² + y² = 15
⇔ x² − 2×7x + 49 − 49 + y² = 15
⇔ (x - 7)² − 49 + y² = 15
⇔ (x - 7)² + y² = 15 + 49
⇔ (x - 7)² + y² = 64
⇔ (x - 7)² + y² = 8²
Then radius of the circle is 8.