Question #252d4

1 Answer
Barney V.
Jan 24, 2017

a=2.76

Explanation:

Using Pythagoras

c^2=a^2+b^2

:. a^2+b^2=c^2

:.a^2=c^2-b^2

:. a^2=3.12^2-1.45^2

:.a^2=9.7344-2.1025

:.a^2=7.6319

:.a= sqrt 7.6319

:.a=2.763

check:

:.c^2=1.45^2+2.763^2

:.c=sqrt(1.45^2+2.763^2)

:.c=sqrt(2.1025+7.6176)

:.c=sqrt9.7201

:.c=3.118 or 3.12

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