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On a map drawn to scale of 1: 350 000 the approximate area of an island is 7 cm². Find correct to 3 s.f the area of the island in square kilometres.

On a map drawn to scale of 1: 350 000 the approximate area of an island is 7cm². Find correct to 3 s.f the area of the island in square kilometres.

Answers

1 cm represents 350 000 cm

1 cm² rep 122 500 000 000

7 cm² rep

1m = 100cm

1 km = 100 m

1 km = 100 000 cm

1 km² = 10 000 000 000 cm²

= $\frac{122500000000 \times 7}{10000000000}$

= 85.75 km²

the area of the island is

0.85.75 km²

johnmulu answered the question on June 12, 2017 at 07:04

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