Question

write only the proof with reason ​

Answer 1

Answer:

the equation given above is Pythagoras theorom

this is use for find the hypotenous (third side DF )

So when we add the squares of these two sides

Hint 1.

${de}^{2} + {ef }^{2} = {df}^{2}$

Hint 2

In the picture the one angle given

$< e = 90$

The angle with 90 degree are KNOWN AS RIGHT ANGLED TRIANGLE

Hence proved

Answer 2

Step-by-step explanation:

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