If a:b=1:2, find the angle c and b...

If `a:b=1:2`, find the angle c and b

Verified by Experts

The correct Answer is:

`anglec=120^(@),angleD,=60^(@)`

LINES AND ANGLES
NAGEEN PRAKASHAN ENGLISH|Exercise Exercise 6 C|20 Videos
LINES AND ANGLES
NAGEEN PRAKASHAN ENGLISH|Exercise Revision Exercise (very Short Answer Questions )|10 Videos
LINES AND ANGLES
NAGEEN PRAKASHAN ENGLISH|Exercise Exercise 6 A|19 Videos
LINEAR EQUATIONS IN TWO VARIABLES
NAGEEN PRAKASHAN ENGLISH|Exercise Revision Exercise|12 Videos
NUMBER SYSTEM
NAGEEN PRAKASHAN ENGLISH|Exercise Revision Exercise (short Answer Questions)|10 Videos

Similar Questions

Explore conceptually related problems

If a:b=4:5 , find the angles c and d

If a+b+c=2, ab+bc+ca=-1 and abc=-2 , find the value of a^(3)+b^(3)+c^(3) .

In a pentagon ABCDE, AB is parallel to ED and angle B= 140^(@) . Find the angles C and D, if angleC: angleD= 5: 6

If a+b=7 and ab=12 find the value of a^(2)-ab+b^(2) .

Let A,B and C be the unit vectors . Suppose that A.B=A.C =0 and the angle between B and C is (pi)/(6) then prove that A = +-2(BxxC)

Given A=[{:(,3,0),(,0,4):}], B=[{:(,a,b),(,0,c):}] and AB=A+B, find the values of a,b and c.

In a triangle ABC, angle A = 60^(@) and b : c = (sqrt3 + 1) : 2 , then find the value of (angle B - angle C)

In an acute angled triangle A B C , if tan(A+B-C)=1 and ,sec(B+C-A)=2, find the value of A ,Ba n dCdot

If a,b are complementary angles and b,c are supplementary angles. If the average of a and c is 85^(@) , then find a+b+c .