Two similar circles are shown. The circumference of the
larger circle, with radius OB, is 3 times the circumference of
the smaller circle, with radius OA
Radius OB measures x units. Which expression represents
the circumference of the smaller circle with radius OA?
lex units
21 }x units
210x units
rex units

Match the scale and the actual area to the area of the corresponding scale drawing. scale: 1 inch to 4 feet actual area: 128 square feet scale: 1 inch to 7 feet actual area: 147 square feet scale: 1 inch to 8 feet actual area: 256 square feet scale: 1 inch to 5 feet actual area: 225 square feet area of scale drawing scale and actual area scale drawing area: 3 square inches arrowright scale drawing area: 8 square inches arrowright scale drawing area: 4 square inches arrowright scale drawing area: 9 square inches arrowright