maps and scales

Instruction: Use symbol of the unit of the measure and no spacing in writing your answer

"You measure the distance between two building on a map to be of 5cm. If the map has a number scale of 1: 100, what is the actual distance on the ground? in metre?"

(a)  

Answer explanation

55 cm × 100 = 500cm = 5 m

Instruction: Use symbol of the unit of the measure and no spacing in writing your answer.

"You measure a distance of 15cm on a map with the following bar scale: (2cm : 100m) What is the actual distance on the ground? in metre?"

(a)  

Answer explanation

15cm ÷2 cm = 7.5 segments. 7.5segments × 100m = 750m.

Instruction: Use symbol of the unit of the measure and no spacing in writing your answer

"You are given a map with the number scale 1:20. you measure a distance of 12cm on the map. What is the actual distance in real life? in metre?"

(a)  

Answer explanation

12cm ×20 = 240cm = 2.4 m.

How many learners are in this class if there is one learner at each desk?

(a)  

Which learner is sitting to the left of learner K?

(a)  

Which learners are sitting closest to the windows?

(a)  

The scale of this plan is given as 1 : 50. Using your ruler and calculator, calculate:

The width of the classroom (from the windows to the bookshelf). in metre.

(a)  

Answer explanation

On the seating plan, the classroom is 10.510,5 cm wide. 10.5cm ×50 = 525 cm = 5.25 m

The scale of this plan is given as 1 : 50. Using your ruler and calculator, calculate:

The length of the classroom (from the blackboard to the wall behind learners M, N and O).in metre.

(a)  

Answer explanation

15cm ×50 = 750cm = 7.5 m

The scale of this plan is given as 1 : 50. Using your ruler and calculator, calculate:

The width of the teacher's desk. in metre.

(a)  

Answer explanation

4.5 cm ×50 = 225cm = 2.25m

Instruction: Use symbol of the unit of the measure and no spacing in writing your answer

"You measure a distance of 10cm on a map with the following bar scale:

(1cm = 15m). What is the actual distance on the ground? in metre?"

(a)  

Answer explanation

10cm ÷1 cm= 10 segments. 10segments ×15 m = 150 m