# mathsphy Maths NO MORE scary

S No. Topic Video
11 7.1 Q1 In quadrilateral ACBD, AC = AD and AB bisects angle A. Show that tri ABC congruent to tri ABD. What can you say about BC and BD?
12 7.1 Q2 ABCD is a quadrilateral in which AD = BC and DAB = CBA Prove that ......
13 7.1 Q3 In the given figure , PA perp to AB, QB perp to AB and PA = QB. If PQ intersects AB at O, show that O is the midpoint of AB as well as that of PQ
14 7.1 Q4 l and m are two parallel lines intersected by another pair of parallel lines p and q.....
15 7.1 Q5 Line l is the bisector of an angle Angle A and B is any point on l. BP and BQ are perpendiculars from B to the arms of Angle A. Show that:
16 7.1 Q6 In the given figure AB = AD, AC = AE and BAD = EAC. Show that BC = DE.
17 7.1 Q7 AB is a line segment and P is its mid-point. D and E are points on the same side of AB such that BAD = ABE and EPA = DPB.
18 7.1 Q8 In right triangle ABC, right angled at C, M is the mid-point of hypotenuse AB. C is joined to M and produced to a point D such that DM = CM. Point D is joined to point B. Show that:
19 7.2 Q1 In an isosceles triangle ABC, with AB = AC, the bisectors of angle B and angle C intersect each other at O. Join A to O. Show that:
20 7.2 Q2 In tri ABC, AD is the perpendicular bisector of BC . Show that tri ABC is an isosceles triangle in which AB = AC.
Topic/Video

11 7.1 Q1 In quadrilateral ACBD, AC = AD and AB bisects angle A. Show that tri ABC congruent to tri ABD. What can you say about BC and BD?

12 7.1 Q2 ABCD is a quadrilateral in which AD = BC and DAB = CBA Prove that ......

13 7.1 Q3 In the given figure , PA perp to AB, QB perp to AB and PA = QB. If PQ intersects AB at O, show that O is the midpoint of AB as well as that of PQ

14 7.1 Q4 l and m are two parallel lines intersected by another pair of parallel lines p and q.....

15 7.1 Q5 Line l is the bisector of an angle Angle A and B is any point on l. BP and BQ are perpendiculars from B to the arms of Angle A. Show that:

16 7.1 Q6 In the given figure AB = AD, AC = AE and BAD = EAC. Show that BC = DE.

17 7.1 Q7 AB is a line segment and P is its mid-point. D and E are points on the same side of AB such that BAD = ABE and EPA = DPB.

18 7.1 Q8 In right triangle ABC, right angled at C, M is the mid-point of hypotenuse AB. C is joined to M and produced to a point D such that DM = CM. Point D is joined to point B. Show that:

19 7.2 Q1 In an isosceles triangle ABC, with AB = AC, the bisectors of angle B and angle C intersect each other at O. Join A to O. Show that:

20 7.2 Q2 In tri ABC, AD is the perpendicular bisector of BC . Show that tri ABC is an isosceles triangle in which AB = AC.