CBSE Class 9 Answered
Construct a triangle ABC having perimeter 12 cm and angles in the ratio 3:4:5.
Asked by Topperlearning User | 04 Jun, 2014, 13:23: PM
Let the angles of the given triangle be 3x, 4x and 5x
Then, 3x + 4x + 5x = 180o
Therefore, x = 15
Hence the angles are 45o, 60o and 75o
Steps of construction.
![](https://images.topperlearning.com/topper/questions/10536_image019.gif)
Answered by | 04 Jun, 2014, 15:23: PM
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