Respuesta :

Answer:

884cm^2

Step-by-step explanation:

top triangle area=21*24/2=252

central triangle area=16*24/2=192

left n right triangle area (each)=22*20/2=220

total area of wood needed=252+192+220+220

=884cm^2

Answer:

Step-by-step explanation:

Total wood needed is the sum of the four triangles shown in the diagram.

The area can be calculated by using the triangle's area formula: 1/2xbasexheight

Total area=(1/2x24x21)+(1/2x24x16)+2x(1/2x20x22)

=884cm^2