Give a rule in words to find the number of nonoverlapping triangles in a polygon

The number of non overlapping triangle in a polygon is 2 less than the number of sides.

Step-by-step explanation:

Consider the provided information.

The sum of all interior angle of the polygon with n sides is 180(n-2).

The above formula is related with the number of non overlapping triangles in a polygon.

As we know that the sum of all interior angle of a triangle is 180°. That means 180 in the above formula is represents the sum of interior angle of triangle.

The (n-2) represents the number of non overlapping triangles in a polygon with n side.

Thus, we can say that the number of non overlapping triangle in a polygon is with n side is n-2.

In words the rule is: The number of non overlapping triangle in a polygon is 2 less than the number of sides.

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)