Question

Draw a angleABC in which ZA = 60°, ZB = 80° and BC = 6.4 cm.​

Answer 1

Answer:

Steps of construction :

1) Draw a line segment AB = 4.5 cm.

2) Make ∠ABC=80

o

.

3) Cut of BC = 6 cm.

4) Join AC.

Therefore, △ABC is the required triangle.

solution

Answer 2

➤ Correct Question :-

Construct a triangle ABC in which ∠C = 60°, ∠B = 80° and BC = 6.4 cm.

$\dashrightarrow$ Steps :-

• First, draw a line segment BC of 6.4 cm.
• Next, take a protractor and keep it's mid-point on the point B and draw a ray measuring 80°.
• Again, take a protractor and keep it's mid-point on the point C and draw a ray measuring 60°.
• Now, join the point where the both ray meets. The point is named as point A.
• Finally, the triangle is constructed.

$\dashrightarrow$ Instruments used :-

• Ruler :- The ruler should be used in all the constructions, because it results in accurate measurement and straight lines.
• Protractor :- The protractor is used to draw the ray in which the measurements of angles are given in the question.