UP TGT Mathematics Trigonometry Test Series - Part 3
If the circumference of a circle is 44 cm (taking pi = 22/7), what is the radius of the circle?
Type: MCQ • Marks: 1
If the circumference of a circle is 44 cm (taking pi = 22/7), what is the radius of the circle?
Options
A. 21 cm
B. 7 cm
C. 14 cm
D. 3.5 cm
Explanation
. Circular measurement uses radian relation s = r*theta. Special angles (15°, 18°, 36°, 22.5°) are evaluated using half-angle and compound angle expansions.
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