Question

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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Answer 1

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