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High school geometry

Course: High school geometry > Unit 3

Lesson 5: Working with triangles
Math
High school geometry
Congruence
Working with triangles
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Find angles in isosceles triangles

CCSS.Math: 8.G.A.5, HSG.SRT.B.5
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Problem

Find the value of x in the triangle shown below.
x, equals
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, start text, p, i, end text or 2, slash, 3, space, start text, p, i, end text
degrees
A triangle with angle x degrees and its opposite side has a length of five, an angle of seventy degrees and its opposite side has a length of five point seven, and its third side has a length of five.
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