**CONCEPTS: **The question tests on the basics of Geometry and basic formulas of Geometry

**SOLUTION: **

In the right angled triangle EDF:

ED^2 +EF^2 = DF^2

Thus EF^2= 13^2 - 5^2

=>EF =12 units

Perimeter =12+5+13= 30 units (OPTION C)

Modified on: Tue, 12 Oct, 2021 at 2:05 PM

**CONCEPTS: **The question tests on the basics of Geometry and basic formulas of Geometry

**SOLUTION: **

In the right angled triangle EDF:

ED^2 +EF^2 = DF^2

Thus EF^2= 13^2 - 5^2

=>EF =12 units

Perimeter =12+5+13= 30 units (OPTION C)

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