Here x=3
so, putting 3 instead of x
Answer:

Step-by-step explanation:
Angles in a triangle add up to 180°


Angles in a straight line add up to 180°


Given:
The radius of circle is 11 inch
The value for pi is 3
The objective is to find the area of the circle.
The area of the circle is given by the formula:

Substituting ,r = 11

We get:

Hence, the area of the circle is 363 square inches
180-90=3x
90=3x
X=30
90+x+y=180
90+30+y=180
120+y=180
Y=60
8 is 91 because 13•7 is 91 inside is needed 91 tiles