Respuesta :

Answer:

Triangle = 1/2(base*height)

Square= base*height

Rectangle= base*height

Circle= pi*r^2

Step-by-step explanation:

Answer:

Triangle: 1/2bh

Square: lw

rectangle: lw

circle: π r^2

Step-by-step explanation:

b=base

h=height

l=length

w=width

r=radius