honors geometry

find the area of an isosceles triangel with hypothenues 18

  1. 👍 0
  2. 👎 0
  3. 👁 33
  1. 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

    1. 👍 0
    2. 👎 0
    posted by drwls

Respond to this Question

First Name

Your Response

Similar Questions

  1. 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? Write answer in mixed number form and reduce if possible

    asked by Queen on March 12, 2010
  2. prealgebra

    the height of a tringle is 3 ft longer then the base. the area of the trianlge is 35 sqft. find the hight and base of the triangel.

    asked by jackson on November 3, 2008
  3. Geometry

    Can anybody help me with this word problem? A homeowner, who loves math, decides to make a garden/patio area in the following way. She decides to make the gardening area, where she will plant roses bushes in the shape of an

    asked by Jonas on October 8, 2014
  4. Math geometry

    1) The base angles of an isosceles triangle are (50-x)^6 and (30x-12)^6 what is the vertex angle? 2) The area of a trapezoid is 52cm^2 if it's bases are 8 cm apart find the sum of their heights 3) What is the area of a circle

    asked by K on February 27, 2017
  5. Geometry help please!

    What is the length of a diagonal of a square with sides 16 ft long? Round to the nearest tenth. & The length of the hypotenuse of an usosceles right traingle is 30 meters. Find the area of the triangle. Round to the nearest tenth,

    asked by Maddy! on August 21, 2006
  6. calculus

    a trapezoid is a quadrilateral with (only) two sides (called bases) that are parallel. an isosceles trapezoid has two equal legs. the area of a trapezoid is A=(1/2)*h*(b1+b2) where b1 and b2 are the two parallel bases and h is the

    asked by robert on November 17, 2011
  7. Geometry

    Isosceles triangle ABE of area 100 square inches is cut by CD into an isosceles trapezoid and a smaller isosceles triangle. The area of the trapezoid is 75 square inches. If the altitude of triangle ABE from A is 20 inches, what

    asked by Curtis on July 9, 2017
  8. calculus

    Find the lenght of the sides of an isosceles triangle with a given perimeter if its area is to be as great as possible. let k be the the length of the two iso sides, so the other side is P-2k. Call that the base. Using Heron's

    asked by amy07 on March 9, 2007
  9. trig

    Ido not understand why the rt triangel was in ratio of 1:√3:2 in Sue's question where in triangle abc c isthert angle and sin a √3/2 - find csc b-please explain where the 1 comes from

    asked by dena on January 17, 2011
  10. Maths

    Isosceles triangle $ABE$ of area 100 square inches is cut by $\overline{CD}$ into an isosceles trapezoid and a smaller isosceles triangle. The area of the trapezoid is 75 square inches. If the altitude of triangle $ABE$ from $A$

    asked by Anonymous on February 15, 2018

More Similar Questions