Answer:
3.14 or pi
Step-by-step explanation:
the area of a circle = 
where r is the radius of the circle
this is 1/4 of the circle, so it would be 1/4 (pi * r²)
it shows that the radius is 2, so you have
1/4 ( pi * 2²)
= 1/4 ( pi * 4 )
= 1/4 (3.14 * 4)
= 3.14 units²
Answer:
80cm
Step-by-step explanation:
A triangle is a three-edged polygon with three vertices. The correct option is C.
<h3>What is a triangle?</h3>
A triangle is a three-edged polygon with three vertices. It is a fundamental form in geometry. The sum of all the angles of a triangle is always equal to 180°.
The sides of the triangle PQR are PQ, QR, and PR. Thus, the correct option is C.
Learn more about Triangle:
brainly.com/question/2773823
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Answer:
<em>"Use the distance formula to find the length of each side, and then add the lengths".</em>
Step-by-step explanation:
By definition the perimeter of a quadrilateral is the sum of the length of its sides.
Therefore the first thing we should find is the length of the sides of the quadrilateral
If we have the vertices A, B, C and D of the quadrilateral then the distance between two of its vertices is the length of one of its sides.
For example, the distance between vertex A and vertex B is the length of the AB side. Then, using the formula of the distance between two points, we find the length of its sides and add them together.
Then the correct answer is: <em>"Use the distance formula to find the length of each side, and then add the lengths".</em>
