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anonymous

  • 5 years ago

So how do i draw a picture this is for a fourth grader dont understand Draw angle ABC that measures 65*

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  1. anonymous
    • 5 years ago
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    m angle ABC = 75 and m angle BCA = 65 [Given.] The sum of the measures of the angles of a triangle is 180. [Triangle -Angle sum theorem.] So, m angle BAC + m angle ABC + m angle BCA = 180 m angle BAC + 75 + 65 = 180 [Substitute given measures.] m angle BAC = 180 - 140 = 40 AD is the angle bisector of angle BAC [Given.] So, m angle BAD = m∠BAC/2 = 40/2 = 20 The sum of the measures of the angles of a triangle is 180. [Triangle angle sum theorem.] m angle BAD + m angle ABD + m angle ADB = 180 20 + 75 + m angle ADB = 180 [Substitute given measures.] m angle ADB = 180 - 95 = 85 Thus, correct answer is option 'B'.

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