Question
Arjun, cycling at a speed of 81 km/hr, can complete one
round of a square field in 8 seconds. The radius of a circular field is 4 meters more than each side of the squared field. Calculate the area of the circular field.Solution
ATQ, Perimeter of the squared filed = {81 × (5/18)} × 8 = 180 metres Therefore each side of the squared field = 180/4 = 45 metres Radius of the circular field = 45 + 4 = 49 metres Therefore, area of the circular field = Ï€r2 = (22/7) × 492 = 7546 m2Â
The simplified value of (452 x 452 x 452 – 356 x 356 x 356)/(452 x 356 + 452 x 452 + 356 x 356) is:
The average of 15 numbers is 32. If 2 is added to each number, then the new average will be:
125% of 88 ÷ 44 × 48 × 8 = ? × √125
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The vertices of a triangle are (2, 1), (5, 4), and (8, 1). What is the area of the triangle?
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