Ratio of perimeters is a : b:
21:18
Which reduces to: 7:6
Ratio of areas is a^2 : b^

2:
"7 ^2: 6^2"
Which simplifies to: 49:16
The answer is 7:6 and 49:36
Answer:
a
Step-by-step explanation:
Answer:
441
Step-by-step explanation:
If you put the numbers in order biggest to smallest you can get the answer by what i mean was that you have to add the numbers that are addition first then minus 0 last
Answer:
v . u = < v1 , v2 > . <u1 , u2> = v1 u1 + v2 u2
Step-by-step explanation: