Question

a stick is to be assumed 1m long, measured the side of a square field. the area thus calculared was 625m square meter. later on, it was discovered that the actual lenggt of the stick is 90cm. find the actual area of the square field​

Answer 1

Answer:

506.25m²

Step-by-step explanation:

area of square field = side²

625 m² = side²

√625m² = side

25m =side

assumed stick = 1 m

assumed side = 1m ×25

actual stick= 90cm

actual side =90 cm× 25

actual side=2250cm

actual side = 2250/100 m = 22.5 m

actual area = (22.5m )²

actual area = 506.25 m²

Answer 2

Answer:

506.25 m²

Step-by-step explanation:

When stick is assumed to be 1 m long:

⇒ area of square = 625 m²

⇒ side² = 625 m²

⇒ side = √625m² = 25 m

It means, stick was used 25m/1m = 25 times.

But, since its actual length is 90cm(=0.9m),

Actual length of side = 25 *0.9

                                   = 22.5 m

∴ Area area = side² = (22.5m)²

                    = 506.25 m²