and it's ans is
7 (a) 24 cm
7(b) 50 cm
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Step-by-step explanation:
in dig. 1 BC=EF=10
AD=AE+EF+FD
24=AE+10+FD
24-10=AE+FD
14=AE+FD
AE=7
FD= 7
SO by Pythagoras theorem BE^2+AE^2=AB^2
X^2 +7^2=25^2
x^2 +49=625
x^2= 625-49=576
x = 24
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