Post-UTME Mathematics 2010 Objective — Question 6
Question 6 of 10 from the Post-UTME Screening (Post-UTME) Mathematics 2010 Objective paper, with the correct answer and a full explanation.
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The interior angles of a pentagon are 130 degrees, 118 degrees, 80 degrees, 78 degrees and x. Find the value of x.
- A. 75 degrees
- B. 108 degrees
- C. 120 degrees
- D. 134 degreesCorrect
Explanation
Sum of interior angles of a pentagon = 540 degrees. x = 540-(130+118+80+78) = 540-406 = 134 degrees.
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