Answer:
1. The circumference of bowl is 43.98 cm
2. The circumference of cookie is 31.42 inches
3. The amount of square centimetre of cheese layer she needs to put on the pizza is 50.27 cm²
4. The circumference of photo frame is 56.55 cm
5. The area of burger is 19.635 cm²
Step-by-step explanation:
1. Bowl diameter = 14 cm
Circumference of bowl = π·D = π×D
Where:
D = 14 cm
Circumference = π × 14 = 43.98 cm
2. Radius of cookie, r = 5 inches
Circumference of cookie = π·D = π×2×r = π×2×10 = 31.42 inches
3. Diameter, D of pizza = 8 cm
Area of pizza = π·D²/4 = π·8²/4 = 50.27 cm²
The amount of square centimetre of cheese layer she needs to put on the pizza = 50.27 cm²
4. Radius of photo frame = 9 cm
Circumference of photo frame = 2·π·r = 2 × π × 9 = 56.55 cm
5. Diameter, D of burger Brian made = 5 cm
Area of burger is given by the following relation;
Area of burger = π·D²/4 = π·5²/4 = 19.635 cm².
