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Only one flow line should come out from a process symbol.

Ensure that only one flow line should enter a decision symbol, but two flow lines should
leave the decision box.

Ensure that the flowchart has a logical start and end.

ADVANTAGES OF A FLOWCHART

Flowcharts provide the following advantages:

Programmers can analyse the problem in detail.
Programmers can easily understand the logic.

Ideas and solutions can be communicated easily and clearly.

Once the flowchart is prepared, the coding becomes easy for the programmer.

DRAWING A FLOWCHART

Let us now learn how to draw a flowchart.
MAKING A CUP OF TEA CALCULATING THE AREA OF A CIRCLE

Start Start

Read Kettle, Teabags, Read r (radius)
water, milk, sugar and cup

Boil the water in the kettle Calculate
Area = 3.14 × r × r
Pour the boiling water into the cup

Print Area
Add milk, sugar and put a
teabag in the cup
Stop

Stir the tea

Tea is ready

Stop

86 Computer Science (V5.0)-V