Answer:
23
Step-by-step explanation:
100 is the exterior angle.
( 2x + 3 ) and 51 are interior angles.
Formula : -
Exterior angles = Sum of two interior angles.
100 = 2x + 3 + 51
100 = 2x + 54
2x = 100 - 54
2x = 46
x = 46 / 2
x = 23
Area of the circle is πr² which corresponds to an angle of 360° subtended at the center. Thus, the area of a sector subtending angle 
at the centre is:
In this case put $\theta$ equal to 30°
There is a Math website that has a lot of Calculus story problems. He shows you how to solve problems.
patrickjmt.com
also on Youtube;
Patrickjmt channel. The Yourmathgal channel is also good,
both have over 800
videos. Have gone to
both since 2011.
A small box because you can buy 2 or more boxes for a less price
i hope this helped and if it didn’t.. sorry
