Page 2 - WSA1

96
So side = = = 24 m
4 4
Therefore area of the square park = (side x side) = 24 x 24 = 576 m 2

6. a) The area becomes 4 times the original area

7. We know that, area of triangle = ½ × base × height

90 = ½ × 20 × height

Height = 9 cm
8.

From the figure,
Base of triangle = 3.2 cm

Height of height = 5 cm

Then,
Area of triangle = ½ × base × height

= ½ × 3.2 × 5

= 1 × 1.6 × 5
2
= 8 cm
9.

From the figure,

Height of parallelogram = 3 cm

Base of parallelogram = 5 cm
Then,

Area of parallelogram = base × height

= 5 × 3
2
= 15 cm
2
10. 154.5 cm