Question

the two parallel sides of a field in the shape of quadrilateral measure 80m and 20m. these meet a third side at right angles
. forth side is 100 m long. if it costs to plough 1m^2 of the field , find the total cost of ploughing the field.

Answer 1

Answer:

Area of field = 2000 + 80 = 2080 m^2

Cost of ploughing = 2080 x 1 = 2080

Step-by-step explanation:

Area of quadrilateral = area of triangle + area of rectangle

Area of triangle = (L + B) / 2

                          = 100 + 60* / 2

                          = 160 / 2 = 80 m^2

*You get 60 by subtracting 20 from 80

 Area of rectangle = L x B

                               = 100 x 20 = 2000 m^2

Area of quadrilateral = 2000 + 80 = 2080

Cost of ploughing = 2080 x 1 = 2080

Answer 2

Answer: Rs 2000

Explanation is in the pic. Please mark me brainliest.