Mathematics
Grade9
Easy

Question

Solve for x. Round to the nearest tenth.

  1. 11.7
  2. 19.7
  3. 15.9
  4. 16.4

hintHint:

cos space theta equals fraction numerator b a s e over denominator h y p o t e n u s e end fraction

The correct answer is: 16.4


    cos space 24 equals x over 18
equals greater than x equals cos space 24 cross times 18
equals greater than x equals 0.913 cross times 18
equals greater than x equals 16.4438
equals greater than x equals 16.4

    Know when to use which trigonometric function and do not forget to round off to the nearest tenth.

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