Question

The total surface area of the cuboid is 603 m2, whose length is 15 m and breadth is 12 m. Find the height of the cuboid, lateral surface area and volume of the cuboid. will mark who ans first as brainliest

Answer 1

Answer:

Given that l=20cm, b=12cm, h=9cm

∴T.S.A=2(lb+bh+lh)

                           =2[(20×12)+(12×9)+(20×9)]

                            =2(240+108+180)

                            =2×528

         ∴T.S.A=1056cm2

Answer 2

Answer:

$\bold\red{ \: AnswER \: }$

Total number of children in the class = 25

Number of girls = 6

Number of boys = 25 – 6

= 19 boys

Thus, percentage of boys in the class = 19 / 25 × 100

= 19 × 4

We get,

= 76%

Therefore, there are 76% of boys in the class