It depends on the units for 20.72. 20.72 metres, rounded to the nearest tenth km is 0.0 km.
0.4 km
1.9km
120.0
20
12.0 km
It depends on the units for 20.72. 20.72 metres, rounded to the nearest tenth km is 0.0 km.
The circumference of a circle with radius of 7 km is 44.0 km (to the nearest tenth), and the area of a circle with radius of 7 km is 153.9 km (to the nearest tenth).C = 2 pi RA = pi R2
0.4 km
1.9km
120.0
24.0
60.90
3 km
20
296.4
It is 4674 km rounded