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Answer:
1. 18.1
2. 63.6
Step-by-step explanation:
1. π[tex]r^{2}[/tex]
π[tex]2.4^{2}[/tex]
π5.76
=18.09557368
=18. 1 when rounded to the nearest tenth
2. d=2r
r=4.5
π[tex]r^{2}[/tex]
π[tex]4.5^{2}[/tex]
π20.25
=63.61725124
=63.6 when rounded to the nearest tenth