Remember that the angles in a triangle add to 180 degrees. So, to solve, you add the two angles you have and subtract that difference from 180.
Answer: HEB
Step-by-step explanation:
Answer:
Expression for perimeter of rectangle is:

Step-by-step explanation:
Width of rectangle is given as
centimeters and
length of the rectangle is given as
centimeters.
To find:
The expression to represent the perimeter of rectangle in centimeters.
Solution:
First of all, let us have a look at the formula to calculate the perimeter of a rectangle.
Perimeter of a polygon is equal to sum of all the sides.
In rectangle, we have a total of 4 sides, 2 sides equal to the width and 2 sides are equal to the length of rectangle.
Therefore, perimeter of a rectangle is equal to twice the sum of width and length of the rectangle.
So, formula:

Where
is the length of rectangle and
is the width of rectangle.
Putting the values of length and width as given in the question statement to find its perimeter:
