honors geometry

posted by .

find the area of an isosceles triangel with hypothenues 18

  • honors geometry -

    If it has a hypotenuse it must also be a right triangle.

    Since the other two sides are equal, their lengths must ne 18/sqrt2.

    The area is then (1/2)(18/sqrt2)^2
    = 9*18/2 = 81

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Honors Geometry

    I'm stuck on these 2 problems. My Geometry teacher won't help me. What is the inverse of the Isosceles Triangle Theorem (ITT)?
  2. geometry

    A triangel has sides 36 5/6 yards, 33 4/5 yards, 17 9/10 yards. What is the perimeter (distance around) of the triangel in yards?
  3. geometry

    An isosceles trapezoid has bases of 4 and 10. If the base angle is 45°, find the area.
  4. geometry

    If XZ = 18 cm, YZ = 27 cm, and AC = 28 cm, what is the length of BC?
  5. honors geometry

    find the area of a triangle whose sides are 25,25, and 14
  6. honors geometry

    find the area of a triangle where sides are 25, 25 and 14
  7. honors geometry

    find the area of an eqilateral triangle with perimeter 45m
  8. Geometry - semicircle inside isosceles triangle

    Isosceles triangle ABC has sides of length AB=AC=25 and BC=40 . Find the area of a semicircle inscribed in triangle ABC with diameter along BC . Please help I do not know how to start....
  9. geometry isosceles

    Find the altitude, perimeter and area of an isosceles trapezoid whose sides have lengths 10 cm, 20 cm , 10 cm, and 30 cm. how?
  10. Geometry

    Can anybody help me with this word problem?

More Similar Questions