Question 10 y


6 5 4 3 2 1


F


D


E 1 2 3 4 5 6 7 8 9 101112 10.1 Enlarge DEF by a scale factor 5


10.2 Measure the sides of DEF and D’E’F’ and then calculate the ratios DE : EF : DF and D’E’ : E’F’ : D’F’.


__ 2 by drawing D’E’F’ next to it.


(2) (2) 10.3 Measure the angles of DEF and D’E’F’ and write down the measurements.


(2) [6]


Question 11


11.1 In the following table, match the solid in Column A with the description in Column B. You only need to write down the number from A with the matching letter from B.


COLUMN A


1 2 3 4 5


TETRAHEDRON HEXAHEDRON OCTAHEDRON


DODECAHEDRON ICOSAHEDRON


A B C D E


COLUMN B 6 SQUARE FACES


20 EQUILATERAL TRIANGULAR FACES 10 REGULAR PENTAGONAL FACES 8 EQUILATERAL TRIANGULAR FACES 4 EQUILATERAL TRIANGULAR FACES


(5) 11.2 Describe the identifying characteristics of a sphere.


(1) [6]


x


360 Section 4: Teaching Mathematics


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