Question

An isosecles right-angled priangle of which the
length of each side of equal two sides is a unit.
The perimeter of triangle is
a) (1+2)a lent (b) (2+12)a lent
(d) (3+2^2)a lent
c) 3a lent​

Answer 1

Answer:

P = (2 + √2)a

Step-by-step explanation:

a, a, c are length of each side of an isosceles right-angled triangle.

c² = a² + a² = 2a²

c = a√2

P = 2a + a√2 = (2 + √2)a