Answer:
Area of the sector is 558.22ft².
Explanation:
A= N/360(πr²)
where;
N=160°
π=3.14
r=20
A= 160/360(3.14(20)²)
A= 160/360(3.14(400))
A= 160/360(1256)
A=558.22ft.
Recall that area is measured in square units. And the unit of the radius is ft. Therefore our final answer becomes 558.22ft².
Also note that a sector is the part of a circle enclosed by two radii of a circle and their intercepted arc. It iseasily noted to be the pie-shaped part of a circle.
2 is Equator
3&4 I do not under stand the actual question <span />
Answer:
it elicits new ideas from another
Explanation:
brainliest?
Puedes subir la foto de las problems porfis ?
The material immediately surrounding an artifact, usually some sediment such as gravel, sand, or clay, is known as the Matrix.
<h3><u>
What is an Artifact?</u></h3>
- An artifact is something that was created by a human. Art, tools, and clothes made by people from any period or location are considered artifacts.
- The phrase can also be used to describe an object's remnants, such as a piece of broken pottery or glass. Scholars who seek to study a culture can learn a lot from artifacts.
- In order to understand the past, archaeologists explore the locations where ancient cultures once existed.
- Artifacts may serve as the only hints regarding how people lived in the past because many ancient cultures lacked written languages or consciously refrained from writing down their histories.
The matrix is composed of the artifact's surrounding sediments, ecofacts, and characteristics. The rock, sand, gravel, or soils around the object or feature may contain crucial information.
Therefore, The material immediately surrounding an artifact, usually some sediment such as gravel, sand, or clay, is known as the Matrix.
Know more about Artifacts with the help of the given link:
brainly.com/question/11408267
#SPJ4
