CK12 - Geometry

(Marvins-Underground-K-12) #1

  1. A squarewindowhas a diagonalof feet. Whatis the lengthof one of its sides?

  2. A squareblockof foamis cut into two congruentwedges.If a side of the originalblockwas feet, how
    long is the diagonalcut?

  3. Thuywantsto find the areaof an equilateraltrianglebut only knowsthat the lengthof one side is
    inches.Whatis the heightof Thuy’s triangle?Whatis the area of the triangle?


Answers



  1. , , and [Diff: 1]

  2. , , and [Diff: 1]

  3. [Diff: 2]

  4. cm or approx. cm [Diff: 2]

  5. milesor approx. miles[Diff: 2]

  6. mm [Diff: 2]

  7. feet [Diff: 2]

  8. feet [Diff: 3]

  9. feet or approx. feet [Diff: 3]

  10. inchesor approx. in. The area is inches^2 [Diff: 3].


TangentRatio


LearningObjectives



  • Identifythe differentpartsof right triangles.

  • Identifyand use the tangentratio in a right triangle.

  • Identifycomplementaryanglesin right triangles.

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