Answer:
C: 124
Step-by-step explanation:
If you look at the angle it has to be over 90 degrees so therefore your only option is C: 124.
I got 42.5 cuz 4x+10=180 then take away 10 from both sides so 4x=170 and you divide each side by 4
Circumference = 360 degrees
<span>Circumference = 2π radians (comes from 2*pi*radius) </span>
<span>Therefore </span>
<span>360 deg. = 2*π radians </span>
<span>180 deg. = π radians </span>
<span>1 deg. = (π/180) radians </span>
<span>75 deg. = 75(π/180) radians </span>
<span>75 deg. = 75π / 180 radians </span>
<span>don't bother to try and simplify π (it is an irrational number) </span>
<span>however you can simplify 75/180 </span>
<span>both are divisible by 5 </span>
<span>75π/180 = 15π/36 </span>
<span>both are divisible by 3 </span>
<span>75 deg. = 5π/12 radians </span>
<span>We normally don't bother to go further, unless you actually need it as a decimal fraction (in which case, you will have an approximation) </span>
<span>75 deg. ≈ 1.308997 radians</span>
Rectangle ABCD is one of the figures.
There is a circle where the line AD forms the radius.
Total area of rectangle = 18
Line AB = 6
So, line AD = 3 and line AE = 3
The interior angles of a rectangle are 90 degrees.
270 : 360 = x : (2*pi*r)
270/360 = x/(2*pi*3)
3/4 = x/(6 pi)
4x = 3* (6 pi)
<span>x = 9pi / 2
The length of the major arc AE is 9pi / 2</span>
