Area formula: pi * radius * radius
Radius=1/2diameter=1/2(7)=3.5
3.5*3.5*pi=12.25pi square feet
Circumference formula: pi * diameter
7*pi=7pi feet
She doodle on 5 of the paper strips
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7
7/2 = 3 1/2
Hi, did you attach the picture for it?
Expanded form is just each place value split into addition.
so 1,852 is
1000 + 800 + 50 + 2
that's all