Question

the edges of a triangular board are 6 cm , 8 cm and 10 cm . the cost of painting it at the rate of 9 paise per cm square.find the cost of the triangular board

Answer 1

formula 480* 9 that is equal to 4320

Answer 2

Answer:

2.16

Step-by-step explanation:

By heron's formula ,

semi perimeter = 6+8+10/2=12

area of board = √12x6x4x2= 24

cost = 24 x 9/100 as 9 is in paise so divide by 100 for rupee

so 24x9/100= 2.16rs

hence this is your answer.