15 A quadrilateral has been drawn on a centimetre grid.
(a) Write down the mathematical name of this quadrilateral. (1)
(b) Work out the area of the quadrilateral. (2)
(c) On the grid below, reflect the quadrilateral in the mirror line.(2)
(d) On the grid, draw an enlargement of the quadrilateral with a scale factor of 3 (2)
Mark scheme (a)
Answer
Mark
Notes
trapezium
1
B1 cao
Mark scheme (b)
Answer
Mark
Notes
8
2
M1 for a strategy to find the area, eg splitting the shape into two triangles or drawing a rectangle around it or using the formula for the area of a trapezium A1 cao
Mark scheme (c)
Answer
Mark
Notes
Shape reflected
2
B2 for correct reflection drawn (B1 for 3 vertices correct or correct orientation, incorrect position)
Mark scheme (d)
Answer
Mark
Notes
Enlargement sf 3 drawn
2
B2 correct enlargement drawn (B1 for any two sides correct or a correct enlargement with scale factor other than 3)
