Question

a small indoor greenhouse herbarium is made entirely of Glass panes including base held together with tape it is 30 cm long 25 cm wide 2.5 centimetre hi what is area of glass ​

Answer 1

Answer:

Area of glass around greenhouse = 1775 cm^2

Step-by-step explanation:

Area of glass = T.S.A of greenhouse

Area of glass = 2 (lb + lh + bh)

= 2 x [(30 x 25) + (30 x 2.5) + (25 x 2.5)] = 2 x (750 + 75 + 62.5)

= 2 x 887.5 = 1775 cm^2

#bal #answerwithquality #markmeasbrainliest

Answer 2

$\huge\bold{\underbrace{\red{Answer!!!}}}$

The herbarium is like a cuboid

Here,

• Length (l) = 30 cm
• Breadth (b) = 25 cm
• Height (h) = 2.5 cm

(1) Surface area of the herbarium (glass)

= 2(lb + bh + hl)

= 2[30 × 25) + (25 × 2.5) + (2.5 × 30)] cm²

= 2(750 + 62.5 + 75) cm²

= 2(887.5) cm²

= 1775 cm²

Thus, the required area of the glass is 1775 cm²

Additional information

• Surface area of a cuboid = 2(lb + bh + hl)
• Surface area is a cube = 6a²
• Curved surface area of a cylinder = 2πrh
• Curved surface area of a cone = πrl
• Surface area of a sphere of radius = 4πr²
• Curved surface area of a hemisphere = 2π r²