Find the area of an isosceles triangle with two sides being 1 and an angle A being 30.

Guest Aug 8, 2017

edited by
Guest
Aug 9, 2017

#2**+1 **

Guest, you have not specified the exact location of the measure of the 30-degree angle. There are 2 possibilities.

TheXSquaredFactor
Aug 9, 2017

#3**+1 **

There are two possibilities.....

If the apex angle between the two equal sides is 30°, the area is

(1/2)* 1^2 * sin (30) =

(1/2) (1/2) =

1/4 units^2

If the equal angles opposite the equal sides = 30°, the apex angle = 120° and the area is

(1/2)* 1^2 * sin (120) =

(1/2)(√3/2) =

√3/4 units^2

CPhill
Aug 9, 2017