Find the length of the third side to the nearest tenth

ANSWER: 5.3

b = missing side
x^2 = x • x
/x = square root of x

using Pythagorean theorem:
a^2 + b^2 = c^2

6^2 + b^2 = 8^2

8^2 - 6^2 = b^2

64 - 36 = b^2

28 = b^2

/28 = /b^2

/28 = b

5.2915 = b

You have 2 sides that are 2 cms and you have 6 sides that are 1/2 cm and you have 4 sides that are 1 cm. the smallest sides are 1/2 the medium sized sides are 1 and the smallest are 1/2. so to find the perimeter you have to add them all up together so your answer will be 11 cm's