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If you have an equilateral triangle ABC, then draw the line from A to D, the mid point of BC.
Then in trangles ABD and ACD, AB = AC (equilateral), BD = DC (D is midpoint), and AD is common so these two triangles are congruent and so angle ABD = angle ACD.
That is, angle ABC = angle ACB.
Similarly the third angle can be shown to be the same. Thus an equilateral triangle is also equiangular.
Now, sum of the interior angles of any triangle is 180 degrees. So since sum of three equal angles measures is 180 degrees, they must be 60 degrees each, i.e. NOT 90 degrees so there is no right angle..
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Write an argument to show that an equilateral triangle cannot have a right?
An equilateral triangle is a triangle where all sides are the same length and all three angles are the same. The sum of the angles of a triangle is 180 degrees. 180 ÷ 3 = 60
What is an inverse statement of if a triangle is an equilateral triangle?
"if a triangle is an equilateral triangle" is a conditional clause, it is not a statement. There cannot be an inverse statement.
Can a scalene triangle be equaiateral?
You spell ' equaiateral;, correct;y as 'equilateral'. A SCALENE triangle cannot be EQUILATERAL, because for all scalene triangles , the length of the three sides are all different and the angles are all different values. An EQUILATERAL triangles has its three sides of equal length , and its three angles all at 60 degrees.
What type of triangle has side lengths of 5 6 and 7?
A triangle with sides of length 5,6, and 7 is a Scalene triangle.It cannot be an equilateral triangle as all three sides must be of equal length.It cannot be an isosceles triangle as this requires two sides of the same length.It cannot be a right angled triangle as 52 + 62 does not equal 72.
Can a triangle have 2 abtuse angles?
No, a triangle cannot have more than one obtuseangle.
