Question

the diagonal of a square is 6 cm long what is its area. ​

Answer 1

Pythagoras Theorem states that,

${a}^{2} + {b}^{2} = {c}^{2}$

$2 {a}^{2} = {6}^{2}$

${a}^{2} = {18}$

$a = \sqrt{18} cm$

Therefore,

Area of Square

$= { \sqrt{18} }^{2}$

$= 18 {cm}^{2}$

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Answer 2

Answer:

1/2 * 6 * 6 = area of square

3 * 6 = area of square

18 = area of square