Hey,
We can see here 2 of the angles are equal and the third one is a right angle right?
That means it is an isosceles triangle since they have 2 equel angles and a right anlgle.
Another feature of the isosceles triangle is that 2 sides are equal.
We are given one side is 5.5 right?
So the side BC has to be 5.5 or the side AB has to be 5.5
In isosceles triangles the side opposite to the 90 degree angle is the hypotenuse.This means it is the longest angle.
So it has to be AB which is equal to 5.5 since BC is the hypotenuse.
Hope this helps,Happy New Year
For the first figure the Circumference of the circle is: 5.3
cm.
For the second figure the Circumference of the circle is: 80 inch.
<h3>What is Circumference of the Circle?</h3>
The circumference of a circle is defined as the linear distance around it.
i.e., 
Circumference of the circle:
Circumference
For the first figure the Circumference of the circle is: 5.3 cm.
For the second figure the Circumference of the circle is: 80 inch.
Learn more about circumference of circle here:
brainly.com/question/23239017
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Answer:
-9
-2
1
-10
1
6
Step-by-step explanation:
Just follow the equation left to right
The answer to your question is 503
