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1986 AMC 12 Question 6

AMC12 · 1986 AMC 12

Question 6

Using a table of a certain height, two identical blocks of wood are placed as shown in Figure $1.$ Length $r$ is found to be $32$ inches. After rearranging the blocks as in Figure $2,$ length $s$ is found to be $28$ inches. How high is the table?

Question illustration
  1. $28$ inches
  2. $29$ inches
  3. $30$ inches
  4. $31$ inches
  5. $32$ inches