Question

1. Find the length of a side of a square whose area is equal to the area of a rectangle
with sides 490m and 40m.​

Answer 1

Step-by-step explanation:

Area of rectangle = 490*40=19600m2

Area of square= area of rectangle=19600m2

Area of square= side * side

19600= side 2

Root 19600= side

Side of square =140 m

Answer 2

Answer:

Side of the square is 140 m.

Explanation:

Area of rectangle = length × breadth

490 × 40 = 19600

We know that,

Area of square = Area of rectangle

19600 m sq. = 19600 m sq.

Area of square = side sq.

Side sq. = 19600

Side = √19600

Side = 140 m