(1)∠A=I/2∠B=1/3∠C -__直角三角形_________
B=2A,C=3A
A+B+C=A+2A+3C=180,A=30,B=60,C=90
(2) ∠A=∠B=1/3∠C -____钝角三角形_______
C=3A
A+B+C=180
A+A+3A=180
A=36
B=36,
C=108
(1)∠A=I/2∠B=1/3∠C -__直角三角形_________
B=2A,C=3A
A+B+C=A+2A+3C=180,A=30,B=60,C=90
(2) ∠A=∠B=1/3∠C -____钝角三角形_______
C=3A
A+B+C=180
A+A+3A=180
A=36
B=36,
C=108