20. Plot the points A( 5 , 5 ) and B ( -5 , 5 ) in the Cartesian plane. Join AB , OA and OB. Name the figure obtained and find its area.
Answers
Answer:
here is your answer
Step-by-step explanation:
bu joining the lines ab,oa,ob we get an isoscwles triangle to be formed.
base of triangle=10 units
height of triangle=5 units
so,area=half*base*height
=1/2*10*5
=5*5
=25 square units.
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Concept: The x coordinate axis and the y coordinate axis are used to provide the Cartesian coordinates in the plane. The point where the x and y axes meet is the origin. A point in the plane's Cartesian coordinates are expressed as (x,y). As the signed distance from the origin in the direction along the x-axis, the first value x is known as the x-coordinate (or x-component). The x-coordinate indicates the distance from the y-axis to the right (if x is positive) or left (if x is negative).
The second integer, y, is referred to as the y-coordinate (or y-component) since it represents the signed distance from the origin along the y-axis. If y is positive or negative, the y-coordinate indicates the distance above or below the x-axis, respectively.
Given: Plot A(5,5) and B(-5,5) in the Cartesian plane. Join AB, OA and OB.
Name the figure obtained.
Find: Find the area of AOB.
Solution:
Observe the below figure for the given task.
Area(AOB) = (1/2)×height × base
= (1/2)×10×5
= 25 (meter)²
Hence, the area of AOB is 25 square meter.
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