Question

A－b＝45см a＝6×b p-?, S-?

Answer 1

45*5=а
45+а=b
p=(a+b)*2
S=a*b

Answer 2

1)Подставляем:
6b-b=45
5b=45
b=9

2)Находим a:
a=6*9=54

3)S=a*b=54*8=486
P=2a+2b=108+16=124

Ответ:124;486.

Answer 3

From the given information, we know that A - B = 45 cm and A = 6B. We can use these two equations to solve for A and B.

Substituting A = 6B into the first equation, we get:

6B - B = 45 5B = 45 B = 9 cm

Now that we know B, we can find A:

A = 6B = 6(9) = 54 cm

To find the perimeter (P) of the figure, we need to know if there are any other sides besides A and B. If there are no other sides, then:

P = A + B + A + B = 2A + 2B = 2(54) + 2(9) = 126 cm

To find the area (S) of the figure, we need to know the shape of the figure. If it is a rectangle, then:

S = A x B = 54 x 9 = 486 cm²

If it is a triangle or some other shape, we would need additional information to calculate the area.