Answer:20cm
Step-by-step explanation:
Circumference=20π
Diameter=circumference ➗ π
Diameter=20π ➗ π
Diameter=20
Diameter=20cm
23 can round to 20 and 21 can also round to 20 so all u do is 20x20=400 so 400 is your estimated answer
Cara's brother is 7 years old.
14 is twice as much as 7 (7 * 2 = 14).
So 70 divided by 2 is 35 so 35 minutes
<span>Volume = L * W * H cubic units
Surface Area = 2 * (LW + LH + WH) square units</span>
