Question

please answer very important

Answer 1

Answer:cost =4940

Area covered =375√15

Step-by-step explanation:

Sides are 120m, 80m, 50m

Perimeter = 120+80+50

=250m

Space left for gate = 3m

Left space = 250 -3 =247m

Cost of fencing 247m =247×20

= 4940 (Ans)

Area :

S = (120+80+50)/2

= 125

Area = √{(125)(125-120)(125-80)(125-50)}

= √(5*5*5*5*3*3*5*5*5*3)

=5*5*5*3√(5*3)

=375√15 (Ans)