Find thr area of triangle ABC Whose sides are AB =a, BC=3a and CA =2a
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1
Answer:
AB+BC+CA=180
a+3a+2a=180
6a=180
a=180/6
a=20
Step-by-step explanation:
Answered by
2
Since, sum of all sides of a triangle are 180 cm.
Therefore, AB+BC+CA=180
a+2a+3a=180
6a=180
a=180/6
a=30
Area of triangle=sum of all sides
=a+2a+3a
=30+60+90
=180cm²
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