The sides of triangular platevare 8cm 15 cm and 17 cm if its weight is 96gm find the weight of the plate per sq.cm
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Solution:-
Given : three side of triangle 8 cm, 15 cm and 17 cm.
semi perimeter = (a+b+c)/2
s = (8+15+17)/2
s = 40/2
s = 20 cm
Therefore, using Heron's formula of area of triangle
√20(20-8)(20-15)(20-17)
√20×12×5×3
√3600
Area = 60 cm²
Total weight of the plate = 96 g (Given)
Weight of the plate per square cm = 96/60
Weight of the plate per sq. cm = 1.6 g
Answer.
Given : three side of triangle 8 cm, 15 cm and 17 cm.
semi perimeter = (a+b+c)/2
s = (8+15+17)/2
s = 40/2
s = 20 cm
Therefore, using Heron's formula of area of triangle
√20(20-8)(20-15)(20-17)
√20×12×5×3
√3600
Area = 60 cm²
Total weight of the plate = 96 g (Given)
Weight of the plate per square cm = 96/60
Weight of the plate per sq. cm = 1.6 g
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