17. The edges of a triangular board are 6cm, 8cm and 10cm. Find the cost of painting it at the
rate of 9 paise per cm2
.
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Step-by-step explanation:
Are Of a triangle Board is = 6 cm , 8 cm and 10 cm
So
6^2= 36
8^2= 64
10^2= 100
- Are Of a Triangle = 1/2 ×b×h
- Area Of a Triangle= 1/2×8×6
- Area of a Triangle = 24 cm ^2
So We have Known That Rate of 9 per Cm^2
So 24×9
Rs 2.16 per cm ^2
Rate of 9 per cm ^2 is Rs 2.16
- thanks dear friend
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