Question

Please help i dont get it still

Answer 1

d = 8.6

Explanation:

a^2 + b^2 = c^2

7^2 + 5^2 = c^2

49 + 25 = c^2

74 = c^2

Now you take the square root of 74 and c^2

If you put the square root of 74 in a calculator you get about 8.6

So c = 8.6 or d = 8.6