Identification and Verification of the Properties of Triangle

📐 Experiment 1: The sum of three interior angles of a triangle is 180°
A B C
Figure a
A B C
Figure b
A B C
Figure c
figure ∠BAC ∠ABC ∠BCA ∠BAC + ∠ABC + ∠BCA Result
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(b)
(c)
📐 Experiment 2: Verification of the angles of an equilateral triangle.
5 cm 5 cm 5 cm A B C
Figure a
5 cm 5 cm 5 cm A B C
Figure b
5 cm 5 cm 5 cm A B C
Figure c
figure ∠BAC ∠ABC ∠BCA Result
(a)
(b)
(c)
📐 Experiment 3: Verification of the angles of an isosceles triangle.
5 cm 5 cm 5 cm A B C
Figure a
5 cm 5 cm 5 cm A B C
Figure b
5 cm 5 cm 5 cm A B C
Figure c
Figure ∠ABC ∠ACB Result
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(b)
(c)
📐 Experiment 4: Experiential Verification of the base angles of a right angled isosceles triangle.
5 cm 5 cm 4 cm A B C
Figure a
6 cm 5 cm 5 cm A B C
Figure b
7 cm 5 cm 5 cm A B C
Figure c
Figure ∠CAB ∠CBA Result
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(b)
(c)