Question

draw a line segment AB=4.6 cms.Construct angle BAC=30° and angle ABC=60°>Measure angle ACB​

Answer 1

sum of angles of a triangle = 180°

60°+30°+x=180°

90° +x=180°

x=180°-90°

x=90°

Answer 2

Step-by-step explanation:

1. draw 4.6 cm line segment
2. use protractor and draw the 30 angle and 60 angle
3. BAC+ABC+ACB=180
4. 30+60+ACB=180
5. 90+ACB=180
6. ACB=90. ans.