the sides of a triangle shaped sheet are 5cm, 12cm and 13 cm. find the cost of painting on the sheet at the rate of ₹30 per cm square
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area of triangle by heron formula
semiperimeter=(5+12+13)÷2=15
a=5,b=12,c=13
area=√s(s-a)(s-b)(s-c)
then,
area=√15(15-5)(15-12)(15-13
area=√15×10×3×2
area=√900
area=30cmsq
then costs at rs30 per cm sq is =30×30=900ruppes
l hope you liked my answer and make this brainliest
semiperimeter=(5+12+13)÷2=15
a=5,b=12,c=13
area=√s(s-a)(s-b)(s-c)
then,
area=√15(15-5)(15-12)(15-13
area=√15×10×3×2
area=√900
area=30cmsq
then costs at rs30 per cm sq is =30×30=900ruppes
l hope you liked my answer and make this brainliest
money555:
if you liked it then please make this brainliest
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