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secondary 4 | E Maths
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Tysm
Date Posted: 2 years ago
Views: 230
Draw a dotted line from (5, 1) to the origin, and a dotted line from (1, -5) to the origin.
The two dotted lines are perpendicular to each other.
Observe that (5, 1) is rotated 90 degrees clockwise about the origin to obtain the image (1, -5).
Do the same for the other two vertices. Then make the same conclusion about the other two vertices.
Triangle T is mapped onto triangle B by a rotation of 90 degrees clockwise about the origin.
The two dotted lines are perpendicular to each other.
Observe that (5, 1) is rotated 90 degrees clockwise about the origin to obtain the image (1, -5).
Do the same for the other two vertices. Then make the same conclusion about the other two vertices.
Triangle T is mapped onto triangle B by a rotation of 90 degrees clockwise about the origin.
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In my comment, I described the geometrical approach.
In my answer, I describe the analytical approach.
It is good to know both, if possible :)
In my answer, I describe the analytical approach.
It is good to know both, if possible :)
Date Posted:
2 years ago
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