Question

Please answer it is very hard for me

Answer 1

Answer:

l×b=8

4×b=8

b=8/4

b=2

area of rectangle B

9×2=18

here the breadth of two rectangles are equal since they are joined together

Answer 2

Answer:

$l1 = 4and \: l2 = 9 \\ area \: of \: rectangle \: a \: \: = l1 \times b \\ 8 = 4 \times b \\ b = \frac{8}{4} \\ b = 2$

$area \: of \: rectangle \: b = l2 \times b \\ area \: of \: rectangle \: b = 9 \times 2 \\ area \: of \: rectangle \: b \: = 18$

$we \: know \: be \: the \: breadth \: of \: \: rectanglea \: and \: b \: is \: same$