Question
The edges of a triangular board are 6 cm, 8 cm and 10 cm. The cost of painting it at the rate of 25 paise per cm2 is Rs. ___
Answer:
:
a=6cm,b=8cm,c=10cm
s=a+b+c2
s=6+8+102
=12cm
A=√s(s−a)(s−b)(s−c)
A=√12(12−6)(12−8)(12−10)
=24cm2
The cost of painting it =24×25=600 paise
=Rs.6
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:
a=6cm,b=8cm,c=10cm
s=a+b+c2
s=6+8+102
=12cm
A=√s(s−a)(s−b)(s−c)
A=√12(12−6)(12−8)(12−10)
=24cm2
The cost of painting it =24×25=600 paise
=Rs.6
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