Let the BASE be aPerpendicular = aHypotenuse = SQRT ( a^2 + a^2)=> 5^2 = 2a^2=> 25 /2 = a^2=> a = 5 / root2Base = 5 / root2Perpendicular = 5 / root2Area = Base × Perpendicular / 2= 1/2 ( 5 / root2) (5 / root2)= 1/2 ( 25 /2)= 25 /4= 6.25 cm^2
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