In Figure, given that `A B||C Ddot` If `/_1=(120-x)^0a n d\ /_5=5x^0,` find the measures of `/_1\ a n d\ /_5.`

In Figure,given that AB||CD If /_4=(x+20)^(0) and /_5=(x+8)^(0), find the measures of /_4 and /_5

In the given figure l || m and n is transversal. If /_5=(2x+40)^@ and /_1=(3x+20)^@ then find the value of x and /_5

In Fig.84, A B C D\ a n d\ A E C F ;\ /_F C G=90^0\ a n d\ /_B A C=120^0dot Find the values of x , y\ a n d\ zdot

In Figure, if A B||C D , /_A P Q=50^0A N D /_P R D=127^0, find x a n d y

A B C D is a cyclic quadrilateral in which: B C A D ,\ /_A D C=110^0\ a n d\ /_B A C=50^0dot Find /_D A C /_D B C=80^0\ a n d\ /_B A C=40^0dot Find /_B C D /_B C D=100^0a n d\ /_A B D=70^0 find /_A D B

In a parallelogram A B C D diagonals A C\ a n d\ B D intersect at O\ a n d\ A C=6. 8\ c m\ a n d\ B D=5. 6 c m . Find the measures of O C\ a n d\ O D .

In a quadrilateral A B C D ,\ /_A+/_C is 2 times /_B+/_Ddot If /_A=140^0\ a n d\ /_D=60^0, then /_B= 60^0 (b) 80^0 (c) 120^0 (d) None of these

If the points A(3,\ 5)a n d\ B(1,\ 4) lie on the graph of the line a x+b y=7, find the values of a\ a n d\ b

B D is one of the diagonals of a quadrilateral A B C Ddot\ \ A M\ a n d\ C N are the perpendiculars from A\ a n d\ C , respectively, on B Ddot Show That a r\ (q u a ddotA B C D)=1/2B Ddot(A M+C N)

In a A B C , D and E are points on the sides A B and A C respectively such that D E B C If A D=8x-7, D B=5x-3, A E=4x-3 and E C=(3x-1) , find the value of x . (ii) If A D=4x-3, A E=8x-7, B D=3x-1 and C E=5x-3 , find the volume x . (iii) If A D=2. 5 c m , B D=3. 0 c m and A E=3. 75 c m , find the length of A C .