Respuesta :

Answer:

7.1

Step-by-step explanation:

Since we know this is isosceles triangle (right angle 90 and two 45 degree angles) we know side a and b are equal.

a^2 + b^2 = c^2

5^2 + 5^2 = c^2

25+25= c^2

50 = c^2

c = 7.071 rounded to 7.1