Question

What is the perimeter?

Answer 1

21.3 unit

Explanation:

`side CB=\sqrt{(7^(2))+(2^(2))} =√(53)\\side CA=\sqrt{(5)^(2)+(2^(2))} =√(29) \\side AB=\sqrt{(5^(2) )+(7^(2) )} =√(74)`

`Perimeter=√(53) +√(29) + √(74) =21.2676` unit