Question

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Answer 1

Answer: 3.4

• Step-by-step explanation:sum of three sides=1.3+2.2+3.5=7.0
• total sum=10.4
• fourth side=perimeter-sum of three sides
• fourth side=10.4-7.0=3.4

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Answer 2

Answer:

Length of its fourth side of the quadrilateral= 3.4 cm.

Step-by-step explanation:

Length of three sides of the quadrilateral are 1.3 cm, 2.2 cm and 3.5 cm.

Its perimeter= 10.4 cm.

Therefore,length of its fourth side of the quadrilateral= (Its perimeter)–(Length of its three sides)

={10.4–(1.3+2.2+3.5)} cm

={10.4–7.0} cm

=3.4 cm.