Q. 21 B4.3( 7 Votes )

# An isosceles righ A. (1 + √2) a unit

B. (2 + √2) a unit

C. 3a unit

D. (3 + 2√2) a unit

Answer :

Given the length of equal side of isosceles right-triangle = a

Then hypotenuse =

⇒ Hypotenuse = √2a units

Perimeter of the triangle = 2a + √2a

= (2 +√2)a units

Hence the solution is option (b)

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