Question

Show that (1,3) , (3,-1) , (-5,-5) form right angled triangle

Answer 1

(1,3) is in 1st quadrant because both the number is postive.

(3,-1) is in 4th quadrant as its first number i.e. 3 is positive but 1 is negative.

(-5,-5) is in 3rd quadrant, as its both numbers are negative.

So, it is a right angle triangle. If forms 90° at 4th quadrant that is at (3,-1). It's a triangle with one angle right angle, thus we can say that the three points forms a right angle triangle.

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Mᴏʀᴇ ɪɴғᴏʀᴍᴀᴛɪᴏɴ

What is Graphical representation?

The statistical data can be represented by diagram, chart etc.

There are four quadrants in a graph–

1st quadrant (+,+)

2nd quadrant (–,+)

3rd quadrant (–,–)

4th quadrant (+,–)

The types of graphical diagrams are–

• Histogram
• Ogive
• Frequency polygon