Answer:
442.590884 naira(NGN)
Step-by-step explanation:
1 kobocoin=8.413029 naira(NGN)
Area=1/2 times bas time height
given that area=10
height=5
find base
10=1/2 times base times 5
times 2 both siddes
20=base times 5
divide oth sides by 5
4=base
the base is 4m