a lawn is in the form of an isosceles triangle. The cost of turfing it came to rs.1200 at rs.4per metre sq. If the base is 40 m long,the length of each side is-
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Solution:
Since cost of turfing = ₹1200 @ 4/m^2
Therefore, area of the triangular field = 1200/4
= 300 m^2
Since, Area of triangle = (1/2) × Base × Height (or length in this case)
Therefore, 300 = (1/2) × 40 × Length
300 = 20 × Length
Therefore, Length = 300/20
= 150 m.
Hence, the length of the triangular field is 150m.
Hope you got it!
Since cost of turfing = ₹1200 @ 4/m^2
Therefore, area of the triangular field = 1200/4
= 300 m^2
Since, Area of triangle = (1/2) × Base × Height (or length in this case)
Therefore, 300 = (1/2) × 40 × Length
300 = 20 × Length
Therefore, Length = 300/20
= 150 m.
Hence, the length of the triangular field is 150m.
Hope you got it!
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