Question

8. Find the cost of fencing a rectangular field 30 m x 10 m with a wire, costing ₹ 3 per metre.​

Answer 1

AS WE KNOW THAT:

$\bold\pink{RECTANGLE = LENGTH × BREADTH(L×B)}$

HERE length IS☞ 30m

AND breadth IS ☞ 10m

L × b = 30 × 10

=300 sq. meter

$\orange{\bold{\underbrace{\overbrace{COST OF WIRE=RS.3per.m}}}}$

Cost Of Fencing = 3 × 300

$\huge{ \color{purple}{ \colorbox{grey}{=rs.900}}}$