The expression below can be used to find the surface area of a cube when given the length of an edge, a.
2 answers:
Answer:
<h2>1.5 cm²</h2>
Step-by-step explanation:
Substitute <em>a = 0.5 cm</em> to the formula <em>SA = 6a² </em>:
<em>SA = 6(0.5)² = 6(0.5 · 0.5) = 6(0.25) = 1.5 cm²</em>
a = edge length = 0.5 cm
S = surface area of cube
S = 6*a^2
S = 6*(0.5)^2
S = 6*0.25
S = 1.5
<h3>The surface area of the cube is 1.5 square cm</h3>
You can use cm^2 in place of "square cm" to mean the same thing.
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