Question 1 (Page 35) - Protractor - Chapter 2 Class 6 - Lines And Angles (Ganita Prakash)

Transcript

Question 1 (a) Write the measures of the following angles: a. ∠ KAL Notice that the vertex of this angle coincides with the centre of the protractor. So the number of units of 1 degree angle between KA and AL gives the measure of ∠KAL. By counting, we get— ∠KAL = 30° Making use of the medium sized and large sized marks, is it possible to count the number of units in 5s or 10s? First, we will rotate the protractor Finding ∠ KAL We count small lines as 5° Big lines as 10° ∴ ∠ KAL = 30° Question 1 (b) Write the measures of the following angles: b. ∠WAL We count small lines as 5° Big lines as 10° ∴ ∠ WAL = 50° Question 1 (c) Write the measures of the following angles: c. ∠TAKWe count small lines as 5° Big lines as 10° ∴ ∠ TAK = 50°