Construct a triangle ABC in which BC = 5.8cm angle B= angle C = 30degree . Measure AB and AC. What do you observe.
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Step-by-step explanation:
It is an isosceles triangle
Step-by-step explanation:
To construct a traingle ABC
BC = 5.8cm
\angle B= 30∠B=30 °
\angle C= 30∠C=30 °
steps :
1) Draw a base line BC = 5.8 cm
2) taking B as a center draw an angle of 30°
3) again taking C as a center make an angle of 30°
4) let these angles meet at a point and name it as A
5) now measure AB and AC
Since the base angles are both 30°
using the theorem
sides opposite to equal angles are equal
and when two sides are equal in a triangle
then , its is an isoceles triangle
the figure shown below:
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