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1. If three angles of a triangle are in the ratio 3: 7:10, show that triangle is right-angled. |
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Answer» Answer: Yes it is a right angled TRIANGLE. Step-by-step EXPLANATION: We know that sum of all ANGLES of a triangle is 180° Now, let the RATIO coefficient be X . A/q 3x+ 7x +10x = 180° 20x = 180° x = 180/20 = 9 So, Angles are : 9×3= 27° 9×7= 63° 9×10=90° Here, one of the 3 angle is 90° . So the triangle is a right angled triangle . |
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