Pooja walks 16 km towards North. From there she walks 10 km towards South. Then, she walks 8 km towards East. How far is she from her starting point?

PR = (PQ – QR) = (16 – 10) = 6 km RS = 8 km So, Sonia’s distance from starting point P = √ 6² + 8² = √ 36 + 64 = √ 100 = 10 Km.

The volume and height of a cylinder are 4400 cm

^{3}and 14 cm. Find the radius of the cylinder.A solid cylinder has the total surface area 231 sq.cm. If its curved surface area is of the total surface area, then the volume of the cylinder is

18 × 15 + 86 – 58 = ? + 38

The length of the rectangle is triple its breadth. If the perimeter of the rectangle is 64 m, then find the area (in m

^{2}) of the rectangle.If (x + 6y) = 8, and xy = 2, where x > 0, what is the value of (x

^{3}+ 216y³)?

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