Question

fiskars printed the outside of the cabinet of measures 1 into 2 metre into 1.5 metre how much surface area did the cover if she painted all except the bottom of cabinet​

Answer 1

Answer:

11m^2

Step-by-step explanation:

Length = 1m

Breadth = 2m

Height = 1.5m

Surface area to cover= Area of 4 walls + Area of ceiling

= CSA of cuboid + Area of rectangle

= 2h(l+b) + lb

= 2(1.5)(1+2) + 1×2

= (3)(3) + 2

= 9 + 2

= 11m^2

Hence, Fiskars will paint 11m^2 of area

Answer 2

Area She Painted = Total Surface Area of Cabinet - Bottom Area

⇒ Area She Painted = 2(lb + bh + hl) - (Length × Breadth)

⇒ Area She Painted = 2[(2 m × 1 m) + (1 m × 1.5 m) + (1.5 m × 2 m)] - (Length × Breadth)

⇒ Area She Painted = 2[(2 m²) + (1.5 m²) + (3 m²)] - (Length × Breadth)

⇒ Area She Painted = 2[2 m² + 1.5 m² + 3 m²] - (Length × Breadth)

⇒ Area She Painted = 2[6.5 m²] - (Length × Breadth)

⇒ Area She Painted =13 m² - (Length × Breadth)

⇒ Area She Painted =13 m² - (2 m × 1 m)

⇒ Area She Painted =13 m² - 2 m²

⇒ Area She Painted = 11 m²