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Help me with this please:)

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Answer :

X111FLOWERSIN
You’ll have to use pythagoras theorem = a^2+b^2=c^2

15^2 = 225
9^2 = 81

225 - 81 = 144

Square root of 144 is 12

Therefore a = 12m
BIANCAPMULESIIN

Answer:

12m

Step-by-step explanation:

a+b=c

a=?

b=9m

c=15m

a+9m×9m=15m×15m

a+81=225

a=225-81

a=144

find its square root

a=12m

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