Three sides of a triangle are 6 cm, 12 cm and 13 cm; then

1.	Three sides of a triangle are 6 cm, 12 cm and 13 cm; then
A.	all three angles are acute
B.	one angle is a right angle and others acute
C.	one angle is obtuse and others acute
D.	one angle is obtuse, one acute and one right angle
Answer» B. one angle is a right angle and others acute

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Three sides of a triangle are 6 cm, 12 cm and 13 cm; then

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