Question

Find the area of the square, the length of whose diagonal is
(i) 72 cm,
(ii) 2.4 m.
​

Answer 1

Answer:

Step-by-step explanation:

》Area of square =[(diagonal)^2]÷2

》(72×72)÷2

》5184÷2

》2592

hope it helps u a lot

Answer 2

Step-by-step explanation:

we we have the diagonal of a square

= 72 cm

take the triangle formed by the diagonal .

now the triangle is right angle triangle.

let the lengths be x and x (since both are equal)

by Pythagoras theorem :-

height² + base² = hypotenuse ²

x² + x² = 72²

2 x² = 5184

x². = 5184/2

x. ² = 2592

x. = √2592

x. = 50.91

so the length of the square is 50.91 cm

now you can do the second one yourself .

hope this helps ...