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SUM(C2:C4) AVERAVE(C2:C4) MAX(C2:C4) MIN(C2:C4)
=C2*30%.D2*70% =C2*30%:D2*70% =SUM(C2*30%,D2*70%) =SUM(C2*70%:D2*30%)
△ABC中,若∠ =∠ ﹣∠A.,则△ABC是直角三角形 B.△ABC中,若a2=(b+c)(b﹣c),则△ABC是直角三角形 C.△ABC中,若∠A.:∠B.:∠C.=3:4:5,则△ABC是直角三角形 △ABC中,若a:b:c=5:4:3,则△ABC是直角三角形
=C2*30%,D2*70% =C2*30%:D2*70% =SUM(C2*30%,D2*70%) =SUM(C2*70%:D2*30%)
=C2*30%,D2*70% =C2*30%:D2*70% =SUM(C2*30%,D2*70%) =SUM(C2*70%:D2*30%)
=C2*30%,D2*70% =C2*30%:D2*70% =SUM(C2*30%,D2*70%) =SUM(C2*70%:D2*30%)
△ABC中,若∠ =∠ -∠A.,则△ABC是直角三角形B.△ABC中,若么∠A.:∠B.:∠C.=5:4:3,则△ABC是直角三角形C.△ABC中,若a:b:c=5:4:3,则△ABC是直角三角形 △ABC中,若a2=(b+c)(b-c),则△ABC是直角三角形
=22°,则∠BDC等于( ) A.44° 60° 67° 77° 图2 图3 图4
=C2*30%,D2*70% =C2*30%:D2*70% =SUM(C2*30%,D2*70%) =SUM(C2*70%:D2*30%)