Question

can anyone solve it please it's urgent​

Answer 1

Answer:

2

side of square are equals

so it's area is a²(a=side)

and perimeter=4a

I) perimeter 4×20=80m

area 20²=400m²

ii)4×1.2

4.8m (perimeter)

area=1.2²=1.44cm²

3

I) given a²=64

a=√64=8cm

so perimeter

4×8=32cm

ii)a²=196cm²

a=14cm

so perimeter=4×14

56cm

iii)a²=2.25cm²

a=√2.25

1.5cm

so perimeter

4×1.5

6cm

4

I)4a=20

a=20/4

a=5cm

so area=a²=5²=25cm²

ii)4a=8km

a=8/4

a=2km

so area

2²=4km²

for change km² into hectare

we have to multiply km²×100

so 400hectare

please mark me as brainlist it is too important for me