Question

pppppllzllzlzlz tell me 7(a)

Answer 1

1 cm represent 20000cm = 20000/ 1000 × 100 = 0.2km

1.) AC^2 =AC^2 + BC^2
= 24^2 + 32^2
=576+1024 = 1600
AC= 40 cm
Actual length of diagonal = 40×0.2 = 8km

2.) 1cm represent = 0.2 km
1cm^2 represent = 0.2×0.2km^2
area of rectangle ABCD = AB×BC
=24×32 = 768cm^2
actual area of plot = 0.2×0.2×768 = 30.72km^2