Question

The edges of a triangular board are 6cm, 8cm & 10cm. Find the cost of painting it at Rs.
0.09 per cm2
HERON'S FORMULA
PLEASE ANSWER STEP BY STEP

Answer 1

Answer:

I don't bro

Step-by-step explanation:

sorry

thought-out

Answer 2

Rs. 2.16

s=2a+b+c=26+8+10=12

By Heron's formula,

Area of the triangle =s(s−a)(s−b)(s−c)=12(12−6)(12−8)(12−10)

=12(6)(4)(2)=24cm2

Cost of painting =9×24 paise =216 paise

 = Rs. 2.16.