8. Find the value of $\sin 72^{\circ}$ correct to two decimal places.
A. 0.95
B. 0.63
C. 0.57
D. 032

Answer

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Answer

Round sin value to two decimal places: $\boxed{0.95}$

Steps

Step 1 ：Convert angle from degrees to radians: $72^\circ = 72 \cdot \frac{\pi}{180} \approx 1.2566 $ radians

Step 2 ：Calculate sin value: $\sin(1.2566) \approx 0.9511$

Step 3 ：Round sin value to two decimal places: $\boxed{0.95}$