Home
Class 9
MATHS
TRIANGLES | EXTERIOR ANGLE OF A TRIANGLE...

TRIANGLES | EXTERIOR ANGLE OF A TRIANGLE, CONGRUENCE, CONGRUENCE OF LINE SEGMENTS, CONGRUENCE OF ANGLES | Exterior angle theorem : If a side of a triangle is produced; the exterior angle so formed is equal to the sum of the two interior opposite angles., The sides AB and AC of a `Delta ABC` are produced to P and Q respectively. If the bisectors of `/_PBC` and `/_QCB` meet at O ; Then `/_BOC = 90^@ - 1/2 /_A`, The sides BC;CA and AB of a `Delta ABC`; are produced in order; forming exterior angles `/_ACD;/_BAE and /_CBF`. Show that `/_ACD + /_BAE + /_CBF = 360^@`, Congruence of Line segments, Congruence of Angles, Congruence of Triangles, Congruence relation

Promotional Banner

Similar Questions

Explore conceptually related problems

Theorem 6.8 : If a side of a triangle is produced, then the exterior angle so formed is equal to the sum of the two interior opposite angles.

The sides BC;Ca and AB of a Delta ABC; are of produced in order; forming exterior angles /_ACD;/_BAE and /_CBF. Show that /_ACD+/_BAE+/_CBF=360

The sides AB and AC of a Delta ABC are produced to P and Q respectively.If the bisectors of /_PBC and /_QCB ; Then /_BOC=90^(@)-(1)/(2)/_A

The sides BC,CA and AB of a triangle ABC, are produced in order,forming exterior angles /_ACD,/_BAE and /_CBF. Show that /_ACD+/_BAE+/_CBF=360^(@)

THEOREM (Exterior Angle Property of a Triangle): If a side of a triangle is produced the exterior angle so formed is equal to the sum of two interior opposite angles.

27.Prove that an exterior angle of a triangle is equal to the sum of its interior opposite angles.

In figure, sides AB and AC of a Delta ABC are produced to P and Q, respectively. The bisectors of lt PBC and lt QCB intersect at O. Tnen. ltBOC is equal to

If one side of a cyclic quadrilateral is produced,then the exterior angle is equal to the interior opposite angle.

If one side of a cyclic quadrilateral is produced; then the exterior angle is equal to the interior opposite angle.