vertex angle

posted by .

The three angles add to 180 degrees. Also , the two base angles of the isoscele triangle are equal, ..

Set those base angles equal, and solve for x.

Put that value of x into the given, and compute the base angles.

The third angle will be the amount to add to the two base angles to get 180 deg

how do I find the vertex angle of an isosceles triangle with base angles of (4x-9) and (3x+2).

  • vertex angle -

    45 degrees 45 degrees and 90 degrees

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Geometry help?

    I'm not sure what to do on these questions. The measure of the vertex angle of an isosceles triangle is 26. Find the measure of each base angle If the measures of the three angles of a triangle are x,2x-20, and 3x-10, then what is …
  2. MATH

    In a triangle ABC, angle A is 2 times angles C and angle B is 20 degrees less than angle C find the number of degrees in these angles In a triangle ABC, angle A is 2 times angles C and angle B is 20 degrees less than angle C find the …
  3. Math(geometry)

    I need to know how to find the meausure of a triangle using vertical angles, and also how to measure a triangle using linear pairs... Oh, I hope I'm not too late with an answer for you... To measure a triangle using linear pairs, you …
  4. corollary to isosceles triangle theorem

    how to prove 1)the measure of each angle of an equilateral triangle is 60. 2)the bisector of the vertex angle of an isosceles triangle is the perpendicular bisector of the base. Thanks. 1) The angles in any triangle have to add up …
  5. ALGEBRA 1

    If x and 3x-10 represent the measure of the acute angles of a right tringle find the value of x. THANKS Let's take it step by step. A triangle has 3 angles in it. Those three angles, when added together, is 180. In a right triangle, …
  6. basic geometric

    a would like to get someone too help me with these math problem. Two angles of a triangle are 40 degrees and 62 degrees; what is the third angle's measur?
  7. Geometry

    How do I find the mesurements of a isosceles triangle?
  8. physics and geometry

    ok proving that thest two angles are equal Gesh almost done lol :O h t t p : / /w w w .a n g e l f i r e. c o m / s ta r s / d h s ph y s i c s / f r ic t i o n . j p g ok How to prove this?
  9. Math

    in a 6 side polygon, the first two angles are equal. , the third angle is twice the equal angles, two other angles are thrice the equal angles, while the last angles is a right angles, find the value of each angles
  10. algebra

    Two angles of a triangle have the same measure. The measure of the third angle is 4° less than twice the measure of each of the equal angles. Given that the sum of the three angles of a triangle is always 180°, find each of the three …

More Similar Questions