B) 35
the formula is .5(outer angle - inner angle) = .5(100-30)=.5*70=35
15 cm^2
A= 5*6/2= 30/2= 15 cm^2
Answer:
Area = 49π
Step-by-step explanation:
circle Area = π x (radius)²
Assuming d = 14 is the diameter (which the problem really should state explicitly, not leave you to assume), then the radius is half of that.
So r = 7, where 'r' is the radius.
Area = π x r² = π(7)² = π(49)
Area = 49π is the exact answer, so it is the one I prefer.
Area = 153.86 is the decimal you get if you multiply 49 x 3.14
Hope this helps.
Formula for the area of a circle is Pi*radius squared
So, we do Pi*2^2 which is 12.57