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
As we know that
<span>speed of an EM wave is 3x10^8
And also
Velocity =Frequency x Wavelength
so for wavelenht
Wavelength = Velocity/ Frequency
so
wavelength = 3 x 10^8 / 5 x 10^9
= 3/50 or 0.06m
hope it helps</span>
Using the distance formula, it would be 14.1 !
Answer:
Step-by-step explanation:
14(8x-36)+2x
112x -504 +2x
114x-504
Answer:
The volume is 33.51
Step-by-step explanation:
The formula for the volume of a sphere is 4/3πr³
