Question

3. Find the volume of rectangular boxes with the following length , breadth and heightrespectively
5a, 3a2, 7a4.

​

Answer 1

Answer:

volume of rectangular box= length × breadth × height

volume =5a×3a

2

×7a

4

=(5×3×7)×(a×a

2

×a

4

)

=105a

1+2+4

=105a⁷

Answer 2

Volume of rectangle = length x  breadth x  height. To evaluate volume of rectangular boxes, multiply all the monomials.

$(i)5a \times {3a}^{2} \times {7 a}^{2} = (5 \times 3 \times 7)(a \times {a}^{2} \times {a}^{4}) = {105a}^{7}$