Which number is a rational number?
9
13
맥
V2
16
49
134

just sum

10 + 10 = 20

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.

- (2, -7)

- lines r and s and lines t and u must be parallel

hope this !