Find the product. 406
×
18
A.
7,308

B.
4,148

C.
7,348

D.
4,248

A. 7,308

Step-by-step explanation:

Hope this helps have a great day ahead!

20

step-by-step explanation:

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.