Respuesta :

A= 4cm
B= 10cm
C= 8cm
D= 6cm
This one is sort of difficult because you have to visualize the net folding into the shape.
triangle area= 1/2 bh where b is the base and h is the height.  Since this is a right triangle, the height will be one of the sides connected to the 90deg angle.
1/2cd= A
1/2 48= A
24cm^2= A
There are 3 other sides.  AD= 4*6= 24cm^2
AB= 4*10= 40cm^2
AC= 4*8= 32cm^2
24*2 (2 triangles)= 48+24+40+32= 144cm^2 area for all 5 sides combined.