Draw PT ⊥ RS Then, RT = PQ = 5 km PT = QR = 15 km ST = (RS – RT) = (25 – 5) km = 20 km In ∆PTS, PS = √ PT² + ST² = √ 15² + 20² = √225 + 400 = √625 = 25 Km
The area of a square field is 800 sq m. How long in seconds will a lady take to cross the field diagonally at the rate of 4.8 km/hr?
The area of the floor of a cubical room is 49m². The length of the longest rod that can be kept in the room is
Calculate the volume of a square prism with a perimeter of 16 cm at the base and a height of 6 cm.
The perimeter of a rectangular field is 480 meters and the ratio between the length and breadth is 5:3. The area of the field is:
A stone is thrown vertically with the velocity which would just carry it to height of 100 feet. Two seconds later another stone is projected vertically ...
Each interior angle of a regular polygon is 140°. Then find out how many diagonals are there?
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The length of a plot is six times its breadth. A playground measuring 300 square metres occupies half of the total area of the plot. What is the length ...
The angle of elevation of the top of an unfinished tower at a point distant 78 m from its base is 30°. How much higher must the tower be raised (in ...
