find the area of a triangle whose sides are 26 CM 28 cm and 30 cm what is the cost of planting rose in this triangular field
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Area by Heron's formula...!
S = a+b+c/2
S = (26+28+30)cm /2
S = 84 / 2
S = 69
Therefore,
Area = √69(69 - 26) (69 - 28) (69 - 30)
Area = √69 (43) (41) (39)
Area = √69 (68,757)
Area = √4,744,233
Area = 2,178.13 cm^2.
Cost of planting rose = Area × rate.
S = a+b+c/2
S = (26+28+30)cm /2
S = 84 / 2
S = 69
Therefore,
Area = √69(69 - 26) (69 - 28) (69 - 30)
Area = √69 (43) (41) (39)
Area = √69 (68,757)
Area = √4,744,233
Area = 2,178.13 cm^2.
Cost of planting rose = Area × rate.
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