Question

What type of triangle is this?

Answer 1

@dan815

Answer 2

triangles can be classified by the length of the sides or by the angles

Answer 3

all different lengths --- scalene
2 sides equal-----isosceles
3 sides equal----equilateral
acute---less than 90 degrees
right angle----90 degrees
obtuse---more than 90 degrees

Answer 4

I know what they are. I just can't tell what this one is.

Answer 5

So mar out the one it isn't from the list given above

Answer 6

mark****

Well, does it have a right angle in it?

Answer 7

No

Answer 8

all different lengths --- scalene
2 sides equal-----isosceles
3 sides equal----equilateral
acute---less than 90 degrees
right angle----90 degrees
obtuse---more than 90 degrees

So we can mark out right triangle

all different lengths --- scalene
2 sides equal-----isosceles
3 sides equal----equilateral
acute---less than 90 degrees
obtuse---more than 90 degrees

Now, look at the angles. Is there any more than 90 degrees?

Answer 9

Yes?