$($Python problem$)9\mathrm{.}3\mathrm{.}2$: Instance methods

triangle$1$ and triangle$2$ are instances of the Triangle class. Attributes height and base of both triangle$1$ and triangle$2$ are read from input. In the Triangle class, define instance method compute$\_$area$()$ with self as the parameter to return the product of attributes height and base divided by $2.$

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Ex: If the input is:

$54$

$88$

$32$

$184$

then the output is:

First triangle's area: $2376\mathrm{.}0$

Second triangle's area: $2944\mathrm{.}0$