Answer is in a photo. I can only upload it to a file hosting service. link below!
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ly/3a8Nt8n
He bought 3 small notebooks (3*7=21) and 3 large notebooks (3*10=30)
21+30=51
Answer:
37 5/7
Step-by-step explanation:
use formular it will be 2pie -22/7 ×radius
since we have been given only radius it will be
2×22/7×6=37 5/7
8 cm and 9 cm is the correct answer