Construct $△ ABC$ in which $BC = 6.2 cm$ , $∠ B = 45 °$ , $∠ A = 35 °$ . Measure $∠ C$ . What kind of this triangle is this?

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Solution

Step 1: Draw a line $BC = 6.2 cm$

Step 2: At point B draw $∠ B = 45 °$
Step 3: At point C draw $∠ C = 35 °$
We get $∠ A = 100 °$ [Measuring by protractor]
In any triangle, if any one of the angles is greater than 90°, the triangle is called an obtuse angle triangle.
Hence, $△ ABC$ is obtuse angle triangle.

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C

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