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Write true or falseA triangle has three angles and three sidesA triangle can have two obtuse anglesAn equilateral triangle is an obtuse-angled triangle |
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Answer» 1. true all the triangle haa 3 sides and 3 angles2.False. A triangle with all three equal sides is calledequilateral3. False. Anobtuse triangleis onewithoneobtuse angle(greater than 90°) andtwoacuteangles. Sincea triangle's anglesmust sum to 180°, notriangle can havemore than oneobtuse angle4. True If two of its sides are equal, a triangle is calledisosceles.5. False In anobtuse triangle, oneangleis greater than aright angle—it is more than 90 degrees. Anobtuse trianglemay beisoscelesor scalene. In anacute triangle, allanglesare less thanright angles—each one is less than 90 degrees. Anacute trianglemay beequilateral,isosceles, or scalene |
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