Sagot :
Answer:
FORMULA: Circumference. 2 × π × r.
1. 2 x 3.14 x 6cm = 37.68cm is the circumference
2. 2 x 3.14 x 5cm = 31.4cm is the circumference
RADIUS:
3. 2 x 3.14 x 15cm = 94.2cm is the radius
4. 2 x 3.14 x 10cm = 62.8cm is the radius
5. 2 x
i can't answer the five without the measurement of the disc.