Question

please give me his answer urgent​

Answer 1

Answer:

a).

$4cm {}^{2}$

8cm

b)

$8cm {}^{2}$

and 14 cm

Step-by-step explanation:

a).

$area \: of \: square = a {}^{2}$

a=2cm

area of square =

$area of square = {2}^{2}$

area of square =

$4cm {}^{2}$

perimeter of square =4a

=4×2=8cm

b).unshaded part =

area of rectangle -area of square

area of rectangle =l×b

= 3×4

=

$12cm {}^{2}$

unshaded part =

area of rectangle -area of square

=12- 4

=

$8cm {}^{2}$

perimeter of recangle = 2(l+b)

=2(4+3)

=2(7)

=2×7

=14cm