Find the Mass of the Triangular Lamina with Vertices $( 0,0 ) , ( 20,40 ) \text {, and } ( 40,0 ) \text { for }$

question 5

Multiple Choice

Find the mass of the triangular lamina with vertices $( 0,0 ) , ( 20,40 ) \text {, and } ( 40,0 ) \text { for }$ the density $\rho=k$

• A)401k
• B)809k
• C)800k
• D)400k
• E)805k

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