Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
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

If the angle of triangles are in the ratio 2:3:7, then the sides are in ratio of? PLS EXPLAIN!!!!!!

If the angle of triangles are in the ratio 2:3:7, then the sides are in ratio of?


PLS EXPLAIN!!!!!!

Grade:9

2 Answers

shaswat roy
19 Points
9 years ago

the ratio of the angles are given, therefore by using the fact that sum of three angles  is 180 deg, you will get the 3 angles of the triangle which are 30deg,45deg,105deg. find the sine of these angles and then simply use sine rule.

himanshu panwar
30 Points
9 years ago

Let a,b,c be the sides and A,B,C be the angles of a triangle

Given  A:B:C =2:3:7

A=2x ; B=3x ; C=7x ;

A+B+C =180  or

2x+3x+7x =180 

then x=15

or

A=30° ; B=45° ; C=105° ;

By sine rule 

a:b:c = sineA : sineB : sineC

a:b:c = sine30 : sine45 : sine(60+45)

       =1/2 : 1/√2 : ( √3/2√2 + 1/2√2 )

 

hence a : b : c  =  √2 : 2 : (√3 + 1)

 

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free