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04-07-2020
Mathematics

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04-07-2020

Answer:

7.5 cm

Step-by-step explanation:

it is a right triangle, b=10, hypotenuse c=12.5

a^2+b^=c^2 the Pythagorean theorm

a^=c^2-b^2

a^2= 12.5^2-10^2

= 56.25

a=√56.25=7.5 cm

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