A rectangular block has a square base of area 49cm2 and its height is 10cm.find its total surface area.
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Hi ,
Let the side of a square = a m
Area of the square base = 49 cm²
a² = 7² cm²
a = 7 cm
Rectangular block dimensions:
width ( w ) = square side = 7 cm
Length (L )= height = 10 cm
Total surface area of the block
= 4× rectangle area + 2 × square area
= 4 × LW + 2 × 49
= 4 × 10 × 7 + 2 × 49
= 280 + 98
= 378 cm²
I hope this helps you.
: )
Let the side of a square = a m
Area of the square base = 49 cm²
a² = 7² cm²
a = 7 cm
Rectangular block dimensions:
width ( w ) = square side = 7 cm
Length (L )= height = 10 cm
Total surface area of the block
= 4× rectangle area + 2 × square area
= 4 × LW + 2 × 49
= 4 × 10 × 7 + 2 × 49
= 280 + 98
= 378 cm²
I hope this helps you.
: )
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