Question

the length of a diagonal of a square is 29 cm. find its area​

Answer 1

Answer:

the diagonal will make a right angled triangle with the two sides of the square

let the measure of one side bex

then using pythagoras theorem we get,

x^2+x^2=29^2

x^2+x^2= 841

841/2=x^2

420.5=x^2

if x is the side thenzx^2 is the area of square

threfore area of square=420.5

hope it helps you psl mark it brainlist

Answer 2

$29 = \sqrt{2 {a}^{2} } \\ {29}^{2} = 2 {a}^{2} \\ 841 = 2 {a}^{2} \\ 410.2 = {a}^{2} \\ 20.26$

HOPE THIS HELPS