Sign in
Please select an account to continue using cracku.in
↓ →
Sum of lengths of all edges of a cube is 84 cm, find its volume?
Let the edge of the cube = $$a$$ cm
Number of edges in a cube = 12
Sum of all the edges = $$12a = 84$$
=> $$a = \frac{84}{12}=7$$
$$\therefore$$ Volume of cube = $$a^3$$
= $$(7)^3=343$$ $$cm^3$$
=> Ans - (B)
Create a FREE account and get: