Question

Need help with geometry please!! The ratio of angle measures is 1:2:2. Classify the triangle by its angle measures.

acute triangle

right triangle

obtuse triangle

equiangular triangle

Answer 1

Let x be the measure of the angle.
so we have x : 2x : 2x.
Add them and equate to 180, because the sum of the interior angles of a triangle is 180.
5x = 180
x = 36

So we have 36 : 72 : 72

Since the angles are all acute (below 90 degrees), the triangle is acute.

Answer 2

is it something like:

1x +2x+2x = 180?

Answer 3

Yes.

Answer 4

then what

Answer 5

ohh.. i see

Answer 6

The you solve for x.

Answer 7

thank u so much :)