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by baulan on April 8th, 2007

baulan

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Help answer this question below.

How do you calculate the angles of an Isosceles triangle, when you already know the lengths? (i.e. the legs are 15cm and the base is 13cm). Please treat me like an idiot, I really don't understand maths.

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  • by JamesD on April 9th, 2007

    JamesD

    The angles of any triangle ALWAYS total 180 degrees. (Ignore the lengths of the sides!) In an isoceles triangle, 2 of the angles will be the same. (The angles created between the base and the other sides.)
    Use a protractor to measure them.

    The remaining angle will be : 180 - (total of both angles that are the same).

    Hope you understand this.

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