Question

The side of a triangular are 8 cm 15 cm and 17 cm If its weight is 96 kg then what will be the weight of the plate per cm square?
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Answer 1

Answer:

Step-by-step explanation:

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 = 1.6g

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Answer 2

Answer:

Given: Three side of triangle 8cm , 15cm and 17cm.

Semi perimeter = (a+b+c) 2

s= (8+15+17) /2

s=40/2

s = 20 cm

Therefore, using formula of area of triangle. √20(20-8) (20-15) (20-17)

√20×12×5×3

√3600

Area = 60 cm square

Total weight of the plate= 96 g ( Given)

Weight of the plate per square cm = 96/60

Weight of the plate per sq. cm= 1.6g