Answer:
10
Step-by-step explanation:
Billy Bob
3. 5
6. 10=16
perimeter=4×6-1/4 ×2π×3=24-1/2×3.14×3=24-4.71=19.29cm
0.00043 is the answer
10^-4=1/10000
43*1/10000= 0.00043