The diameter of the plate is 9.24 inches
Step-by-step explanation:
Let us consider the radius to be 'r'
Angle = 120°
Chord length = 8 inches
Chord length = 2rsin(θ/2)
8 = 2r sin(120/2)
8 = 2r sin60°
8/2 = r (√3/2)
4/(√3/2) = r
r = 8/√3
r = 8/1.73
r = 4.62 inches
Diameter of the plate = 2(4.62)
= 9.24 inches
900 gallons because 300 is burned every hour so 300 x 3 hours is 900
Volume of cylinder = πr^2 × h
= π × (5/2)^2 × 13
= 255.25 yd^3
Answer:
3
1176
used calculator
