The percentage value of the decimals are 475%, 99% and 1040% respectively.
Data;
a) 4.75
To convert a decimal value to percentage, all we simply need to do is multiply that number by 100.
b) 0.99
To convert this decimal value to percentage, we just need to multiply this number by 100.
c) 10.4
To convert this decimal value to percentage, we just need to multiply this number by 100.
Learn more on conversion of decimal value to percentage here;
You need this key result: in any polygon, the sum of the interior angles is
where is the number of sides of the polygon.
Your polygon has seven sides, and the measures of all angles are given. So, we can write
Again, we've simply written that the sum of all interior angles is the number of sides, minus two, times 180.
We can simplify both sides: we sum like terms on the left hand side, and we easily compute the right hand side:
and we can solve this equation for by dividing both sides by 30:
Finally, the required angles is