Question

find the surface area of the prism using the net. hint: area of a triangle b×h÷2 what is the area of the front and back triangles? front and back triangles ?cm² side rectangles cm² bottom rectangle cm² surface area cm²

Explanation:

Step1: Identify base and height of triangle

Base $b = 8$ cm, height $h= 4$ cm.

Step2: Calculate area of one triangle

Using formula $A=\frac{b\times h}{2}$, we have $A_1=\frac{8\times4}{2}=16$ $cm^2$.

Step3: Calculate area of front and back triangles

Since there are 2 such triangles, $A_{total - triangles}=2\times A_1 = 2\times16 = 32$ $cm^2$.

Answer:

32