prameela painted the outer surface of a cabinet of measures 1mx 2m x 1.5m. Find the
surface area she cover if she painted all except the bottom of the cabinet
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prameela painted the outer surface of a cabinet of measures 1mx 2m x 1.5m. Find the
surface area she cover if she painted all except the bottom of the cabinet
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Answer:
11m² is the surface area she cover if she painted all except the bottom of the cabinet.
Step-by-step explanation:
Surface area of cuboid = 2(lb + bh + hl)
We have given that, Prameela painted the outer surface of a cabinet of measures 1mx 2m x 1.5m.
Here -
length = 1m, breadth = 2m and height = 1.5m
Substitute these values in above formula
⇒ 2(1×2 + 2×1.5 + 1.5×1) m²
⇒ 2(2 + 3 + 1.5) m²
⇒ 2(6.5) m²
⇒ 13 m²
Also given that, bottom of the cabinet is not painted. But all other area is painted.
So, Area of bottom = length × breadth
⇒ 1 × 2
⇒ 2 m²
So, Area painted by Prameela = Outer surface area of cabinet - Area of bottom
Substitute the known values
⇒ 13 m² - 2 m²
⇒ (13 - 2) m²
⇒ 11 m²