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Intermediate June 2019 Unit 2 Q7

WJECIntermediateCurrent spec5 marksSimilar ShapesTransformations of Shapes

7.

(a) The diagram shows two congruent triangles.
The coordinates of each vertex are shown.
Axes x and y with two congruent triangles: one with vertices (8, 15), (11, 5), (3, 2); the other with vertices (−1, 5), (2, b), (a, −8)

Diagram not drawn to scale

Find the value of \(a\) and the value of \(b\). [2]

\(a =\) ……………     \(b =\) ……………

(b) Draw an enlargement of the rectangle below, using a scale factor of 3 and centre (1, 2). [3]
Grid with x and y from 0 to 12; a rectangle with vertices (2, 3), (3, 3), (3, 5), (2, 5)
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