so for question 2 find the area of the rectangle first:
[tex]15 \times 19 = 285[/tex]
then you find the area of the triangles:
[tex]15 \times 13 = 195 \\ 195 \div 2 = 97.5[/tex]
[tex]15 \times 11 = 165 \\ 165 \div 2 = 82.5[/tex]
Add up all the answers:
[tex]285 + 97.5 + 82.5 = 465[/tex]
and for question 3, part A, you just find the area of the 2 boxes and multiply:
[tex]5 \times 5 = 25 \\ 25 \times 2 = 50[/tex]
[tex]2 \times 5 = 10 \\ 10 \times 4 = 40[/tex]
[tex]40 + 50 = 90[/tex]
so the surface area of the box is 90 square inches therefore the paint covered 90 square inches. For part B, just add up the length of the thick black lines:
[tex]5 + 5 + 5 + 5 + 2 + 5 + 5 + 5 + 5 + 5 + 5 + 2 + 5 + 5 = 64[/tex]
How these helped have a good day
