LINES AND ANGLES (LECTURE 8)

Lines and angles (6.3)

Good morning boys

Today's learning outcome will be:

1.  I will be able to solve the sums by applying the concept of parallelism of lines and angle sum property of a triangle.
2. How to use exterior angle property to solve sums.



Let us recall

• The sum of the angles of a triangle is 180⁰
• 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.

Important: Do all these sums in your class register.

EXERCISE 6.3

Q1.

Q2.

Q3. In the figure, if ABll DE, ÐBAC = 35⁰  and   ÐCDE=53⁰ ,find ÐDCE.

Q4.

Q5.

Q6.👆

EXTRA QUESTIONS FOR PRACTICE

Q1.

Q2.

This chapter is over, very important and the concepts we are going to use in future classes also.
Please revise each concept and question thoroughly. You will have a class test in the next class.

Take care and have a nice day.