Login
Home
TOP
Send feedback
Login
Subjects
Maths CBSE Live product
Class 7 (2026-27)
A tale of three intersecting lines
Construction by Angles
7.
TBQ - Construct the triangle using two angles and one side
Question:
4
m.
Construct triangles for the following measurements:
\(120°, 6 \ cm, 30°\)
Construction:
Step - 1:
Draw a base line segment AB = 6 cm.
Draw a base line segment BC = 6 cm.
Draw an altitute AB = 6 cm.
Step - 2:
Place the protractor at B and construct ∠ B = 120° by drawing the other arm of the angle.
Place the protractor at A and construct ∠A = 30° by drawing the other arm of the angle.
Place the protractor at A and construct ∠A = 120° by drawing the other arm of the angle.
Step - 3:
Place the protractor at B and construct ∠ B = 120° by drawing the other arm of the angle.
Place the protractor at C and construct ∠C = 30° by drawing the other arm of the angle.
Place the protractor at B and construct ∠B = 30° by drawing the other arm of the angle.
Step - 4:
Mark the intersecting point of the two arms as the vertex B.
Mark the intersecting point of the two arms as the vertex C.
Mark the intersecting point of the two arms as the vertex A.
Thus, \(ABC\)
is the required triangle
.
Login
or
Fast registration
Previous task
Exit to the topic
Next task
Send feedback
Did you find an error?
Send it to us!
