Answer:
7.
lateral surface area of traingular prism=perimeter of traingle ×length=[5+3+4]×6=72cm²
curved surface area=2[area oftraingle]=2×1/2×4×3
=12cm²
now
total surface area=72cm²+12cm²=84cm²
8.
volume of traingular prism=area of traingle ×length
=1/2×12×3.4×4=81.6cm³
It is actually not 28 because the volume of a cylinder is: pi r^2 x h which in this case is pi x 36 x 4 which equals 452.39 rounded up
If AB + BC = AC, and A, B and C are collinear, then
B is between A and C
I do not understand ur language I speak English sorry I cannot help u have a good day
