MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
Chanchal Kumar Grade: 11
        

P,Q,R is a point on the side of the triangle AB, BC and CA respectively. if P, Q and R divides the sides AB, BC and CA in the ratio m:1. Find the centroid of the triangle ABC.

7 years ago

Answers : (1)

AJIT AskiitiansExpert-IITD
68 Points
										

Dear Chanchal ,


let A = (a1 ,a2) ; B =(b1, b2) ; C =(c1, c2)


p = (mb1+a1/m+1 , mb2+a2/m+1)  , Q = (mc1+b1/m+1 , mc2+b2/m+1) , R = (ma1+c1/m+1 , ma2+c2/m+1)


centroid  = p+Q+R/3


   = (m(a1+b1+c1)+(a1+b1+c1)/(m+1)) /3, m(a2+b2+c2)+(a2+b2+c2)/(m+1)/3


   = (a1+b1+c1)/3 ,(a2+b2+c2)/3


i.e same as the triangle ABC .


Please feel free to post as many doubts on our discussion forum as you can. We are all IITians and here to help you in your IIT JEE preparation.

Now you can win exciting gifts by answering the questions on Discussion Forum. So help discuss any query on askiitians forum and become an Elite Expert League askiitian.





Win exciting gifts by answering the questions on Discussion Forum..






7 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies
  • Complete AIPMT/AIIMS Course and Test Series
  • OFFERED PRICE: Rs. 15,900
  • View Details
  • Complete JEE Main/Advanced Course and Test Series
  • OFFERED PRICE: Rs. 15,900
  • View Details

Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details