Answer:
see below
Step-by-step explanation:
given:
radius of a circle = 3cm
find:
1. diameter
2. radius
3. r²
1) diameter = twice the radius = 2 r = 2 (3) = 6 cm
2) radius = 3 cm
3) r² = 3² = 9 cm
Answer: The answer for 1. is 216
The answer for 2. is 224
The answer for 3. is 90
The answer for 4. is 40
The answer for 5. should be 80
Step-by-step explanation:
Answer:
Step-by-step explanation:

This cannot be solved unless you are more specific
Answer:
12.5 km per liter
Step-by-step explanation:
To get the kilometer per liter divide km by liters
100/8=12.5
Answer:
or 11.125
Step-by-step explanation:
