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secondary 3 | A Maths
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anyone can help me by showing me the steps to get the answer? ASAP thanks!! :)
Date Posted: 4 years ago
Views: 211
The only way is to find the length of all the lines by the staight-line "Pythagoras Theorem" length formula.
I still dont understandd
We use the formula for the length of a straight line, which is the square root of
(x2 - x1)^2 + (y2 - y1)^2
to find the length of the straight line joining two points together.
The above formula is actually a more general expression of the Pythagoras Theorem, since x2 - x1 represents the “horizontal” distance between both points and y2 - y1 represents the “vertical” distance between both points.
(x2 - x1)^2 + (y2 - y1)^2
to find the length of the straight line joining two points together.
The above formula is actually a more general expression of the Pythagoras Theorem, since x2 - x1 represents the “horizontal” distance between both points and y2 - y1 represents the “vertical” distance between both points.
We have to do so over the three sets of coordinate pairs.
Length of AB is the square root of
(xB - xA)^2 + (yB - yA)^2.
Length of BC is the square root of
(xC - xB)^2 + (yC - yB)^2.
Length of CA is the square root of
(xA - xC)^2 + (yA - yC)^2.
Add these three values for the perimeter of the triangle.
Length of AB is the square root of
(xB - xA)^2 + (yB - yA)^2.
Length of BC is the square root of
(xC - xB)^2 + (yC - yB)^2.
Length of CA is the square root of
(xA - xC)^2 + (yA - yC)^2.
Add these three values for the perimeter of the triangle.
thanks!! :)
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Date Posted:
4 years ago
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