Question

All of them please help me
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Answer 1

Answer:

for 1st question u have to apply c2 =a2 +b2

so, 7×7+24×24=x

therefore 49+576 =x

so, x =625

for 2nd part same formula

it will be 20×20 +21×21 =x

400+441=x

so, x =841