Question

a painter needs to cover a triangular region 62 meters by 66 meters by 74 meters a can of paint covers 70 square meters how many cans will be needed .

helppppppppppppp plzzzzzzzzz

Answer 1

http://en.wikipedia.org/wiki/Heron's_formula

Answer 2

can u help me plz sir

Answer 3

Use that formula to find the area, then just divide by 70. I don't have calculator with me.

Answer 4

what is the formula sir

Answer 5

Heron's formula. Wiki it.

Answer 6

T = \sqrt{s(s-a)(s-b)(s-c)}

Answer 7

add 62 66 74 then divied by 1/2 right

Answer 8

\[Area=\sqrt{s(s-a)(s-b)(s-c)}\] where \[s=\frac{ a+b+c }{ 2 }\]

Answer 9

i got 101

Answer 10

i got 101

Answer 11

is it right