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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