Question

Can you help me pleaseee

Answer 1

Answer:

the trick here is to find the surface area of each geometric shape, then add all up:

Rectangle (Left) = $9cm\cdot5cm=25cm^2$

Rectangle (middle) = $6cm\cdot9cm=54cm^2$

Rectangle (Right) = $9cm\cdot4cm=36cm^2$

Triangle (Top) = $\frac{1}{2}\cdot6cm\cdot3cm=9cm^2$

Triangle (Bottom) = $\frac{1}{2}\cdot6cm\cdot3cm=9cm^2$ (Notice that both triangles have the same area as this is a prism where cross sectional area are identical.

∴ Total area = $25cm^2+54cm^2+36cm^2+9cm^2+9cm^2=133cm^2$

Hope this helps :)

Step-by-step explanation: