Question

1) 1)Convert the following into R.F:-
a)3.5cm to 28kms
b)4cms to 5kms​

Answer 1

Answer:

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Explanation:

example: ground distance = 5 km, map distance = 2 cm.

- STEP 1: - 2 cm represents 5 km - (write in full)

- STEP 2: - 1 cm represents 2.5 km - (divide so left side = 1)

- STEP 3: - 1 cm represents 250,000 cm - (convert to same units)

- STEP 4: - scale is 1 : 250,000 - (express as a representative fraction)

example: distance on map = 3.5 cm, map scale = 1:15,000

- what is the real distance?

- STEP 1: - 1 cm represents 15,000 cm - (express scale in words, same units as your measurement)

- STEP 2: - 3.5 cm represents (3.5 x 15,000) cm = 52500 cm - (multiply both sides by map distance)

- STEP 3: - 3.5 cm represents 525 m - (convert to more convenient units)

answer: 525 m