Let ABC the vertices of the EQUILATERAL triangle inscribed in the circle centered in O & with R as radius (sketch it to better understand)
Join OA & OB so that to calculate the area of sector BOA
Mesure Angle C = 1/2 mes Arc AB, but C =60° , then Arc AB = 120°
So the central angle AOB = mes ARC OAB = 120°
The area of a sector = mes angle BOA x R² (mind you angle should be in radian) Angle BOA = 120°or 2π/3 (in radian) the Area Sect = (2π/3).R²
Area of circle= pi r^2=49xpi.
Answer:
x = 10
Step-by-step explanation:
Assuming you mean (1/4)(4x - 24), we simplify this to obtain:
x - 6 + x = 14
Combining like terms, we get:
2x = 20. Then x = 20/2, or x = 10
Answer:
C. Graph c
Step-by-step explanation:
I got it correct
