Step-by-step explanation:
(i) Initial surface area =6×l×l
New surface area =6×(2×l)×(2×l)=4× initial surface area.
So, the new surface area will be increased by 4 times.
⇒(ii) Intial volume =l×l×l
Final volume =(2l)×(2l)×(2l)=8× initial volume.
So, volume of the cube will be increased by 8 times.
Summary: If each edge of a cube is doubled, (i) the surface area increases by four times (ii) the volume of the cube increases by eight times.
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Answers & Comments
Step-by-step explanation:
(i) Initial surface area =6×l×l
New surface area =6×(2×l)×(2×l)=4× initial surface area.
So, the new surface area will be increased by 4 times.
⇒(ii) Intial volume =l×l×l
Final volume =(2l)×(2l)×(2l)=8× initial volume.
So, volume of the cube will be increased by 8 times.
Verified answer
Summary: If each edge of a cube is doubled, (i) the surface area increases by four times (ii) the volume of the cube increases by eight times.
hey buddy how are you kkrh♥
tysm..