Question

400=0+1/2*a*400.......answer​

Answer 1

$\huge\underline\mathit\color{plum}{Answer}$

$400 = 0 + \frac{1}{2 } \times a \times 400$

$400 = \frac{400a}{2}$

$400 = 200a$

$\frac{400}{200} = a$

$a = 2$

Answer 2

This is the explanation For the sum.

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