Jane fastens two hollow pieces of wood together for a project in her shop class as shown in the figure below what's the total volume of her project. pretend it two figuresfigure a is 2x8x5figure b is 4x2x8

1. ∠1 is complementary to ∠2 and ∠3 is complementary to ∠2. subtraction property of equality 2. m∠1 + m∠2 = 90 and m∠3 + m∠2 = 90 substitution 3. m∠1 + m∠2 = m∠3 + m∠2 definition of complementary 4. m∠1 = m∠3 given