Question

two caintical cube of side 7cm are joined end to end find the lsa of result solid

Answer 1

❏GIVEN:-

CUBE:

• side = 7cm

two cubes are joined together,then the resultant solid will be cuboid .

CUBOID:

• breadth (b) = 7cm
• height (h)= 7cm
• length (l)= 14cm

as the two cubes of side 7cm joined,length will be ( 7 + 7 ) 14cm

❏SOLUTION:-

➠LSA of cuboid

➠$\boxed{\sf{ 2h(l+b) cm² }}$

➠2(7)(7+14)

➠2(7)(21)

➠$\boxed{\sf{294cm²}}$

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CUBE:

➥TSA = 6a² sq.units

➥CSA = 4a² sq.units

➥volume = a³ cu.units

CUBOID:

➥TSA = 2(lb + bh + lh)sq.units

➥CSA = 2h(l+b) sq.units

➥volume = l × b × h cu.units

Answer 2

Answer:

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