Ms. Heinen's desk is 3 feet by 2 feet. What is the perimeter of her desk?

10 ft

Step-by-step explanation:

Her desk is a rectangle

Perimeter of a rectangle: 2 ( l + b )

l = 3 ft

b = 2 ft

2 ( 3 + 2 ) = 2 (5) = 10

The perimeter of her desk is 10 ft.

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.