Question

1•The base of a triangular field is two times its altitude. If the cost cultivating the field at 250 per hectare is * 1000, find the
area of the field.

2• The inner circumference of a circular track is 220 metres. The track is 1.50 m wide. Calculate the cost of tiling the track at the rate of 7 per m2.​

Answer 1

Answer:

Step-by-step explanation:

1.

let the base be 2x .unit

altitude = x

1hectare = 10km

Rs 250 is required for 1hectare

Rs 1000 is required for

$1/250*1000=4$

4 hectares is your answer as per your question!

2.

inner circumference = 220

2 π r = 220

r *2* 22 = 220 * 7

r = 35 m [ inner radius ]

inner radius , r₁ = 35 m

outer radius , r₂ = 35 + 1..5 = 36.5 m

outer circumference = 2 π r ₂

= 2 * ( 22 / 7 ) * 36.5 =  229.4 m

Cost of fencing = Rs 2 * 229.4 = Rs 458.85