HELP ME PLEASE

9514 1404 393

  159 cm²  (see comment)

Step-by-step explanation:

The area of the central rectangle is ...

  A = LW = (18 cm)(8 cm) = 144 cm² . . . rectangle area

The area of the two triangles is ...

  A = 2(1/2bh) = bh = (6 cm)(2.5 cm) = 15 cm²    (each triangle is 7.5 cm²)

So, the total area of the net shown is ...

  144 cm² +15 cm² = 159 cm² . . . prism surface area

Additional comment

Yet another poorly edited geometry problem. The equilateral triangle will have a height closer to 5.2 cm than 2.5 cm. Apparently, somebody transposed the figures. If the correct number is used, the single-triangle area is 15.6 cm² and the total area is 175.2 cm².

Which set of answers is "correct" will depend on whether the answer key matches the intended problem, or the problem actually shown.

step-by-step explanation:

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.