The measure of each interior angle of a regular polygon is 135º. find the number of sides.
number of sides
5
?

The number of sides of the polygon with 135° interior angle is 8  

Step-by-step explanation:

Given as :

The measure of each interior angle of regular polygon = 135°

Let The total number of sides = n

So, each internal angle of a regular polygon with n sides =

or,   135°  =

or, = 180° - 135°

or,   = 45°

∴   n =

I.e  n = 8

Hence the number of sides of the polygon with 135° interior angle is 8  Answer

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)