Math, asked by alex56, 1 year ago

Find the length of thread to stick on all edges on a cuboid of L=10cm, B=5cm, H=3cm

Answers

Answered by DharanshiJain
1
Area of 4- walls = 2(l+b) *h CM2
= 2( 10+5)*3
= 2*15*3
= 30*3
= 90 cm2 ans

DharanshiJain: ok
Ishita333: It's wrong
Ishita333: U don't hv to find its lateral surface area...u need to find the length of the thread
Answered by Ishita333
1
L=10 cm
B=5cm
H=3cm
No. of lengths=4
Total length=4*10=40cm ----(1)
Similarly,
Total breath=4*5=20cm-----(2)
Total height=4*3=12 cm------(3)
Now,
Adding (1),(2) and (3)
40+20+12= 72cm

alex56: Is urs correct
Ishita333: Ya
alex56: Thanks for the answer
Ishita333: Welzz
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