MATHEMATICS REVIEW (SEPT - OCT) 😁🎉📚

Enlargement

100

What is meant by the term Enlargement?

A transformation that changes the size of a shape (larger or smaller) while preserving its shape.

200

A shape has a side of length 4 cm. Its image has a corresponding side of length 12 cm. Find the scale factor.

Scale Factor = 3

300

A shape is enlarged by a scale factor of 2. If its original perimeter is 15 cm, what is the perimeter of its image?

Perimeter = 30cm

400

Triangle ABC has vertices A(2, 3), B(4, 1) and C(1, 2). It is enlarged by a scale factor of 2, with centre of enlargement at the origin. Find the coordinates of A′, B′ and C′.

A′(4, 6), B′(8, 2), C′(2, 4)

500

Point P′(−9, 12) is the image of Poiny P when enlarged by a scale factor of 3, with centre of enlargement at the origin. Find the coordinates of P.

P(−3, 4)

Converting TO Base 10

100

Convert 7 to base 2

111₂

200

Convert 14 to base two

1110₂

300

Convert 25 to base 3

221₃

400

Convert 45 to base 5

140₅

500

Convert 100 to base 3

10201₃

Converting FROM Base 10

100

Convert 101₂ to base 10

5

200

Convert 1101₂ to base 10

13

300

Convert 212₃ to base 10

23

400

Convert 304₅ to base 10

79

500

Convert 1202₃ to base 10

47