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Free CBEST Section 1: Math Exam Braindumps (page: 11)

Page 10 of 26
PDF with 100 Questions

Use the diagram to answer.

If the two triangles in the diagram are similar, with angle A equal to angle D, what is the perimeter of triangle DEF?

  1. 12
  2. 21
  3. 22.5
  4. 24.75
  5. 25.0

Answer(s): C

Explanation:

DE is 2.5 times greater than AB; therefore, EF is 7.5 and DF is 10. Add the three numbers together to arrive at the perimeter.



Which of these angle measures form a right triangle?

  1. 45 degrees, 50 degrees, 85 degrees
  2. 40 degrees, 40 degrees, 100 degrees
  3. 20 degrees, 30 degrees, 130 degrees
  4. 40 degrees, 40 degrees, 40 degrees
  5. 40 degrees, 50 degrees, 90 degrees

Answer(s): E

Explanation:

This is the only choice that includes a 90 degree angle.



What is another way to write

  1. Option A
  2. Option B
  3. Option C
  4. Option D

Answer(s): B

Explanation:

The square root of 12 is the same as the square root of 4 times 3, which is the same as the square root of 4 times the square root of 3. The square root of 4 is 2.
So 3 times the square root of 12 is the same as 3 times 2 times the square root of 3, or 6 times the square root of 3.



Third grade student Stephanie Wink goes to the school nurses office, where her temperature is found to be 98 degrees Fahrenheit.
What is her temperature in degrees Celsius?

  1. 35.8
  2. 36.7
  3. 37.6
  4. 31.1
  5. 22.4

Answer(s): B

Explanation:

Use the formula beginning with the operation in parentheses: 98 minus 32 equals 66. Then multiply 66 by 5/9, first multiplying 66 by 5 to get 330. 330 divided by 9 is 36.66667, which is rounded up to 36.7.






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