Question

A－b＝45cм a＝6×b p-?, S-?

Answer 1

B=9 a=9*6=54 P=(54+9)*2=63*2=126 (см) S=54*9=486 (см2)

Answer 2

It seems like you're providing some equations, but it's not entirely clear what you're asking. Let's break down the information you've given:

1. $A - B = 45$ cm
2. $A = 6 \times B$

It appears that you're trying to find the values of $A$ and $B$. Given the second equation, we can substitute the value of $A$ from the second equation into the first:

$6 \times B - B = 45$ cm

$5 \times B = 45$ cm

$B = 9$ cm

Now that we know $B$, we can find $A$ using the second equation:

$A = 6 \times B = 6 \times 9 = 54$ cm

As for $P$ and $S$, you haven't provided any equations or context for me to work with. Could you please provide more information or clarify your question?