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Subjects
Mathematics CBSE
Class 7 New
A tale of three intersecting lines
Textbook Based Questions
10.
TBQ - Construct the triangle using two angles and one side
Exercise condition:
4
m.
Construct triangles for the following measurements:
\(120°, 6 \ cm, 30°\)
Construction:
Step - 1:
Draw a base line segment AB = 6 cm.
Draw an altitute AB = 6 cm.
Draw a base line segment BC = 6 cm.
Step - 2:
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.
Place the protractor at B and construct ∠ B = 120° by drawing the other arm of the angle.
Step - 3:
Place the protractor at B and construct ∠B = 30° 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 = 120° by drawing the other arm of the angle.
Step - 4:
Mark the intersecting point of the two arms as the vertex C.
Mark the intersecting point of the two arms as the vertex B.
Mark the intersecting point of the two arms as the vertex A.
Thus, \(ABC\)
is the required triangle
.
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