15.) In an isosceles triangle, one base angle is 15° less than three times its
vertical angle. Find all the angles of the triangle,
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Answer:
70° (Vertical Angle), 55° (Base Angles)
Step-by-step explanation:
The base angles are taken as variables B1 and B2. The vertical angle is taken as V.
ATQ, Vertical Angle - 15° = Base Angle
The sum of all angles in a triangle is 180°.
The rest is an equation, as shown in the photo.
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