What is the surface area of this rectangular prism?

290in2

Step-by-step explanation:

A=2(wl+hl+hw)=2·(5·5+12·5+12·5)=290

m∠5 + m∠3 = m∠1   is true.

m∠5 + m∠6 = 180 is true

m∠2 +m∠3 = m∠6   is true

m∠2 +m∠3 +m∠5 = 180   is true

step-by-step explanation:

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