Math topic中文

Enlargement reduction

enlargement and reduction of a plane figure

Practice questions

  1. 1将长为5厘米、宽4厘米的长方形按5：1放大，得到的图形面积是（ ） A. 100平方厘米 B. 200平方厘米 C. 500平方厘米
  2. 2Roy made a model of his yacht with a scale of 1 : 40. The actual length of the yacht is 12.5 m, find the length of the m…
  3. 3A microprocessor is in the shape of a cube where the sides are 5 mm in length. Find the maximum number of microprocessor…
  4. 4A piece of A0-sized paper has a total surface area of 1 m^2. The length and breadth of the A0-sized paper are x m and y…