the edges of a triangular boards are 6cm .8cm and 10cm. calculate the cost of pointing it at the rate of 9 paise per cm2
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Area = 1/28base*height
= 1/2*6*8 = 24 cm square
cost of painting = 24*9= 216 = 2 rs 16 paisa
Dont get confused. This triangle is a right angled triangle as the sides comply with pythagoras theorem.
So no need for heron.
= 1/2*6*8 = 24 cm square
cost of painting = 24*9= 216 = 2 rs 16 paisa
Dont get confused. This triangle is a right angled triangle as the sides comply with pythagoras theorem.
So no need for heron.
Adityakrishnatr:
but heron answer is same
thanks
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