5.4x10^11 metres per second or 540,000,000,000 metres per second
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Answer: B
Step-by-step explanation:
A = 0/360 ×π×r^2
=135/360×π×11×11
=142.55 yd^2
<span>461.81 cm^3 .................................</span>
Multiply 15 x 3.14. You'll get 47.1. Thats the area