Question

Find and give me answers plz ​

Answer 1

Answer:

(i) 93msq

Step-by-step explanation:

(i) length= 2+14+2= 18m

breadth=2+5+2=9m

area of the larger rectangle= l*b

= 18*9

= 162msq

length=14m

breadth=5m

area of the smaller rectangle= l*b

= 14*5

= 70msq

Area of the shaded region = area of the larger rectangle - area of the smaller rectangle

= 163-70

area of the shade region = 93msq

will answer the other questions soon

(too much to type)

Answer 2

Answer:

ii) 66cm²

v) 2086cm²

Step-by-step explanation:

ii)

For smaller circle,

diameter (d) = 4cm

.: radius (r) = 4/2 = 2cm

Area of a circle = πr²

$area \: of \: circle \: = \pi {(2)}^{2} \\ = 4\pi \\ = 4 \times \frac{22}{7} \\ = \frac{88}{7}$

For larger circle,

diameter (D) = 10cm

.: radius (R) = 5cm

$area \: of \: a \: circle \: = \pi {(5)}^{2} \\ = 25\pi \\ = 25 \times \frac{22}{7} \\ = \frac{550}{7}$

Area of shaded region

= Area of larger circle - Area of smaller circle

= 25π - 4π. or. = 550/7 - 88/7

= 21π. or = 462/7 = 66

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v)

For a rectangle,

Length = 60 cm

breadth = 40cm

$Area \: of \: a \: rectangle = length \times breadth \\ = 60 \times 40 \\ = 2400 {cm}^{2}$

For a circle,

Diameter (d) = 20cm

Radius (r) = d/2 = 20/2 = 10cm

$area \: of \: circle = \pi {r}^{2} \\ = 3.14 \times 100 \\ = 314 {cm}^{2}$

Area of shaded region

= area of a rectangle - area of a circle

= 2086cm²