The exterior angle of a triangle is 130° and it's opposite interior angles are in the ratio of 2:3. (i) Which property you will use to find these angles? (ii) What will be the equation? (iii) Find the angles. *
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Step-by-step explanation:
i) Property:
The measure of an exterior angle of a triangle is equal to the sum of its remote interior angles.
ii) Equation
2x + 3x = 130
x = 130 / 5 = 26
iii) Angles
angle1 = 2x = 2 * 26 = 52
angle2 = 3x = 3 * 26 = 78
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