Oh, dude, that's an easy one. A triangle has three lines of symmetry. Yeah, like, you can fold that bad boy in half three different ways and it's still looking symmetrical. Triangles, man, they're like the cool kids of geometry.
No, it's not. Reflecting a triangle about *any* line has to move at least one corner (if all three stayed in place, they'd all have to be on a line, which is impossible). If the line is a line of symmetry, the result should be the same triangle, which means that the corner got moved to another corner. Reflections don't change angles, so the angles at two corners are equal. If there are TWO lines of symmetry, there's two DIFFERENT pairs of equality between the angles: angle A equals angle B, and angle B equals angle C. But then, a third pair of equality has to exist: angle A must equal angle C. This means the triangle is equilateral, and has three lines of symmetry! So the only way for the triangle to have two lines of symmetry is for it to have three.
Honey, measuring the width of a triangle is as easy as measuring the distance between two of its sides. Just whip out your ruler or measuring tape, line it up perpendicular to the base, and boom, you've got your width. No need for fancy math or geometry tricks here, just good old-fashioned measuring.
draw a straight line down from the middle of the top point (vertex) of the triangle. Measure the base and height and multiply it. whats half of the number you got? that's your answer. thanks for asking!
They have to be across from each otherJoin the equationsSolveYou will know if you got it right if your slope is the same for both sides
A heptagon can have all 7 lines that are perpendicular to one or both its neighbours.
In general, a triangle can have 0, 1 or 3 lines of symmetry.
No but it has perpendicular lines that meet at right angles.
Oh, dude, a heptagon has like a bazillion pairs of perpendicular lines... just kidding! It actually has 14 pairs of perpendicular lines. So, like, if you ever need to find perpendicular lines in a heptagon, you've got plenty to choose from.
First of all, your grammar is terrible. The question should be "Does a triangle have 2 lines of symmetry and 2 lines of rotational symmetry? and the answer is no. A triangle can not have 2 lines of rotational symmetry, because you only rotate the image, you do not use any lines.
A triangle, no matter the type, can never have any parallel sides. To try this out, draw any two parallel lines on a sheet of paper and try to make a triangle out of it.
8
Well the easiest way to do this (but in no way perfectly accurate) would be to extend both lines as far as you can on either end. If the lines never meet on either side you've got parallel lines. Well, either that or you're not drawing straight lines, or you haven't drawn them out far enough. The accurate way would be to draw a perpendicular line from one of them towards the other and measure the angle against the second line. If it's perpendicular to both lines you've got yourself parallel lines.
three
Perpendicular lines meet at right angles and in the alphabet in capital letters they are E T F H and L
A triangle has got 3 sides to it & that's why it's called a triangle. Three sides.
Yes,I think it has got one