Question

the cost of printing the top surface of a triangular board at 60 paise per square meter is rs 72 if the height of the board is 8m find as it's base
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Answer 1

Answer:

30m

Step-by-step explanation:

let the length of the base = b

then, area of the triangular board = (1/2)*b*8

= 4b sq. m

Now, cost of printing 1sq.m = 60 paise

cost of printing 4b sq. m = 4b * 60

= 240b paise

A/q, 240 b = 7200 paise

b = 30

hence length of base = 30m

Please folow me