Answer:
If a convex polygon has n sides, then its interior angle sum is given by the following equation: S = ( n −2) × 180°.
Step-by-step explanation:
Where S is the angle-sum, and n is the number of sides. (2n-4) x 90 where n is the number of sides.
Solution:
As, we have to find , 
% of 20
If we have to Percent of a certain number it means , divide that number by 100 , for example x% means 
.
And if i am writing , x% of y it means , 
.
Answer:
45 × 1/3 = 15
Step-by-step explanation:
15 / (1/3) = (3×15)/1 = 45
so, from 15 / (1/3) = 45
we can then adapt the equation by multiplying both sides by 1/3
15 = 45 × (1/3)
The answer would be 7+x*x the variables stand for the 2 unknown numbers and the product is the * symbol. Increased stands as the plus symbol. Hope this helps!
