Question

A triangular garden has base 30 m heigh 32m. find the cost of levelling the garden at $6 per m2​

Answer 1

Answer:

Step-by-step explanation:

Let the sides be

a=16,b=12,c=20. (By herons formula)

s = a+b+c = 16+12+20. 48

----------. -------------- =. ----- =. 24

2. 2. 2

A = √s(s-a)(s-b)(s-c)

A = √24(24-16)(24-12)(24-20)

A = √24×8×12×4

A = √(2×2×3×2)(2×2×2)(2×3×2)(2×2)

A = 2×2×2×2×2×3

A = 96 m sq.

Cost per metre=4

Cost for 96 m = 4×96

=384 rs

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