Answer:
4 cm
Step-by-step explanation:
Perimeter = 18cm
θ = 2.5 radian
s = rθ, s = Arc length
Perimeter of Sector, P = arc length, s + 2r
Perimeter = rθ + 2r
r = Radius
18cm = r(2.5) + 2r
18cm = 2.5r + 2r
18cm = 4.5r
r = 18 /4.5
r = 4
Answer:
this ange is congruent to the one above so you would just subtract 180 from 116
180-116
= 64
The surface area of a right circular cone is SA =<span>
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The diameter (d) is equal to 20 meters and half of it is equal to the radius which is 10 meters.
The height (h) of the tank is equal to 42 meters.
Substituting the given to the equation:
SA =
= 1670.51 square meters or the closest answer is 1,671 m2
Answer:
A = P
Step-by-step explanation:
ABC = PQR
The angles line up so
A = P
B = Q
C = R
Answer:120x10 1200 half a piece = 60% 50-60=10%=1200
Step-by-step explanation: