The perimeter of a triangular field is 242m. If two of it's side are 120m and 109 m, find the height corresponding to 120m side. Also calculate the cost of watering at Rs.5 per m^2.

45 degres

step-by-step explanation:

sorey if i hav bad engelish im bad engelish

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

12.5 feet

step-by-step explanation: