Question

8m2 - 7n^2
- 15 m²+ 4n²​

Answer 1

Answer:

16 hectares=160000 sq.m.

40 dam=400 m

area of a triangle= 1/2 * base * height

160000=1/2*base*400

base=160000*2/400

=800 m

base=800 m= 80 dam