Question
2945 – 1508 + 3454 = ? +
2255Solution
2945 – 1508 + 3454 = ? + 2255 ? = 2945 – 1508 + 3454 - 2255 ? = 6399 - 3763 = 2636
Find the perimeter of a sector which forms a central angle of 150° in a circle of radius 21 cm.
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