Whenever you move from the left to right or right to left of any linear equations, you have to switch from plus to minus or multiply to division.
Gary is using an indirect method to prove that segment DE is not parallel to segment BC in the triangle ABC shown below:
1 answer:
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Answer:
Step-by-step explanation:
if C is the right angle,
AB is the hypotenuse
AB^2=AC^2+BC^2
AC^2=13^2-5^2
AC^2=169-25=144
AC==12
AC=12