Find `/_a, /_b, /_c, /_d` and `/_e` in the figure. Give reasons.

What is the measure of /_A+/_B+/_C+/_D+/_E+/_F in the figure given below. Give reason to your answer.

Find the measure of angle ‘a’ in each figure. Give reason in each case .

Find angle a,angle b, angle c, angle d, angle e in the figure?

If in /_\ABC , /_B = /_C and /_A = 60^@ , then /_B =

In /_\ABC, /_A=3 /_B and /_C=2/_B .Find the three angles of /_\ ABC.

If a, b, c, d, e, f are in A.P then e-c=

Decide whether the SSS congruence is true with the following figures. Give reasons

Decide whether the SSS congruence is true with the following figures. Give reasons

Take four points A, B, C and D such that A B, C lie on the same line and D is not on it. Can the four line segments overline AB , overline BC , overline CD , and overline AD from a quadrilateral? Give reason.

Look at the following pairs of figures and find whether they are congruent. Give reasons. Name them.