WAEC - Further Mathematics (2018 - No. 22)
Express \(\frac{13}{4}\pi\) radians in degrees.
495°
225°
585°
135°
คำอธิบาย
\(180° = \pi radian\)
\(\frac{13}{4}\pi = \frac{13}{4} \times 180° = 585°\)
\(180° = \pi radian\)
\(\frac{13}{4}\pi = \frac{13}{4} \times 180° = 585°\)