## goformit100 Group Title Without using the Pythagoras theorem, show that the points (4, 4), (3, 5) and(–1,–1) are the vertices of a right angled triangle. one year ago one year ago

1. goformit100 Group Title

@mayankdevnani

2. hartnn Group Title

3. goformit100 Group Title

i hve give the exam for 12th this year.

4. hartnn Group Title

u know pythagoras theorem and distance formula ?

5. luckythebest Group Title

Use the distance formula.

6. goformit100 Group Title

No I an very weak at co-ordinate geometry :'(

7. hartnn Group Title

Distance between points (x1,y1) and (x2,y2) is $$\huge d=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}$$ does this help ??

8. luckythebest Group Title

@goformit100 then there is one concept - Distance formula. If (x1,y1) and (x2,y2) are two given points on any co-ordinate plane, the distance b/w 2 points is given by - $\sqrt{(x1-x2)^2 + (y1-y2)^2}$

9. goformit100 Group Title

@hartnn How to use it here ?

10. hartnn Group Title

take 2 points at a time (4, 4), (3, 5) x1 = 4 y1 =4 x2 = 3 y2=5 d1=... ?

11. goformit100 Group Title

ok , I got it Thank You Sir