Answer:
i got 7 units squared
Step-by-step explanation:
Answer:
either 81 or 81.8
Step-by-step explanation:
Answer:
True
Step-by-step explanation:
Just a guess
Answer:
Step-by-step explanation:
d
Question 7:
Diameter = 6.2 cm so Radius = 3.1 cm
A=πr² = 3.14 × 3.1² = 30.1754 cm² = 30.18 cm²
Question 8:
Circumference = 2πr
16π = 2πr
therefore 16 = 2r so r = 8cm
