Question

If one line segment is 30 cm long and the second line segment is 500 mm long, how long, are the two line segments together? Write your answer in cm.​

Answer 1

Answer:

1mm=0.1cm

50mm multiplied by 0.1=50cm

30cm+50cm=80cm

the two line segment are 80cm long

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Answer 2

Explanation:

Given :

• One line segment is 30 cm
• Second line segment is 500 mm long

To Find :

• How long are the 2 line segments together.

Solution :

Firstly,

We need to make them in one unit. As in the question it is asked in cm so we will convert mm into cm.

1 mm = 0.1 cm

1 cm = 10 mm

To convert 500 mm into cm we have to divide it by 10.

➛ 500/10

➛ 50 cm

So, 500 mm = 50 cm

★ As now the units are same so we can easily add the lengths of the two line segments.

➠ 50 cm + 30 cm

➠ 80 cm

∴ The two line segments together measures 80 cm.