Q2 of 65 Page 13

The base of a triangle is 18m. more than two times of its heights, if the area of the triangle is 360 sq.m., then let us determine the height of it.

Let the height of the triangle be h.

Therefore, the base of triangle = 2h + 18.


According to question,


Area of triangle = 360










So, the height of triangle is 15m.


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4

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 1

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 3

If 5 times of a positive whole number is less by 3 than twice of its square, then let us determine the number.

 4

The distance between two places is 200 km.; the time taken by motor car from one place to another is less by 2 hrs than the time taken by a zeep car. If the speed of the motor car is 5 km/hr. more than the speed of the zeep car, then by calculating let us write the speed of the motor car.