All of a "rhombus's" sides are equal so if it states " one side is 30*" then all 4 sides are 30* .
If they are asking for the inside (perimeter) than you would have to divide 30* by 4 which leaves you with 7.5 .
To check your answer complete 7.5 x 4 and you'd get 30 .
(PLEASE MARK BRAINLIEST) :)
$80-$2= $78 is the number less than $80, since the pens cost $2
78/2= 39 pens is the greatest number of pens sold
hope this helps
384 pages (0.75) = 288 pages
Add this to the original amount of pages.
384 + 288 = 672 total pages.
Answer:D
Step-by-step explanation:
Answer:
Sum of the interior angles = (n-2) x 180°
where
n is the number of sides of the polygon
Step-by-step explanation:
The formula for the sum of the interior angles of a polygon is:
where
is the sum of the interior angle of the polygon
is the number of polygons
Let's check the formula using an example:
We want to find the sum of the interior angles of a square, we know that a square has 4 sides, so 
.
Replacing values
We can apply the same procedure to any convex polygon with n sides.
