<span>C = 2πr.
C= 2*3.14*20
125.6</span>
Answer:
Step-by-step explanation:
area of sector = {Ф ( in degrees)/360}πr²
Ф = 60
π=3.14
r=10
area = (60/360) x 3.14 x 10²
= (1/6)x3.14 x100 = (1/6)x314= 314/6 = 52.33
Answer:
-15
Step-by-step explanation:
Cancel out each product, equalling as so.
10^2 is 10×10 which is 100
4^2 is 4×4 which is 16
so it simplifies to 100-16×2. By Order Of Operations, parentheses, exponents, multiply and divide, add and subtract 100-16×2 makes 100-32 which is 68
Step-by-step explanation:
the filled in circle represents y possibly being = to 20 and the arrow represents it possibly being less