Question

1)10+y-7+y=50

2)11y-12=27

3) find the area of trapazium whose parallel sided are 2 cm and 5 cm and is height is 4 cm..

4) what are the formulas of lateral and total surface area of cube,cuboid and cylinder..

plzz give all this answer fast..

Answer 1

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Answer 2

1.3+2y=50
2y=50-3
2y=47
y=47/2
2.11y=27+12
11y=39
y=39/11
3.area of trapezium=h*a+b/2
=4*2+5/2
=14
4.total surface area

cube=6l square
cuboid=2(lb+bh+lh)
cylinder=2 pi r(r+h)

lateral surface area

cube=4l square
cuboid=2h(l+b)
cylinder=2 pi r h