Exercise $1$ : c$++$

$1.$ What would be the correct variable type in which to store the following information ; Explainwhy

a$.$ Your weight

b$.$ Your age

c$.$ Your full name

d$.$ The volume of a water tank

$2.$ Create good variable names for this information.

$3$ Declare these variables.

$4$ Declare a constant for pi $3\mathrm{.}14159.$

$5$ Declare a float variable and initialize it using your pi constant.