find the total surface area and lateral surface area of cuboid whose length breadth and hight is 20cm 15cm and 18cm.
Answers
Answered by
3
Answer:
Length (L) = 20 cm
Breadth (B) = 15 cm
Height (H) = 18cm
Total surface area (T.S.A.)
= 2 * (LB + BH + LH)
= 2 * [ (20*15) + (15*18) + (20*18) ]
= 2 * [ 300 + 270 + 360 ]
= 2 * 930
= 1860 cm^2
Lateral Surface Area (L.S.A.)
= 2h(l+b)
= 2h (20+15)
= 2h*(35)
= 2 * 18 * 35
= 36 * 35
= 1260cm^2
Hope it helped you...
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Answered by
4
Answer:
Step-by-step explanation:
Given:
length = 20 cm
breadth = 15 cm
height = 18cm.
Total surface Area of cuboid =
2(lb + bh + hl)
= 2(20 x 15 + 15 x 18 + 18 x 20)
= 2(300 + 270 + 360)
= 2 x 930
= 1860 ²
Lateral surface area of a cuboid
= 2h(l + b)
= 2 x 18(20 + 15)
= 36 x 35
= 1260 ²
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