Answer:
Diameter = 8 cm
Radius = 8/2 = 4 cm
Height = 12 cm
Volume of cone = 1/3πr^2h = 1/3 (4)^2 × 12π
= 64π cubic cm
Radius of lead = 4mm = 0.4 cm
Volume = 4/3πr^3 = 4/3 × (0.4)^3π = 0.256/3π cubic cm
Total number of balls = 64π÷ 0.256/3π = 750
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Step-by-step explanation:
yes
17
A' (-1, 2)
(x, y) -> (-y, x)
B' (1, -2)
C' (2, -2)
D' (0, -2)
circumference=2πr
=2×3.14×8.5
=53.38cm
