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Furkat [3]
3 years ago
12

Help me on isosceles and equilateral triangles problems. Find the value of x in the triangle shown below.​

Mathematics
1 answer:
trapecia [35]3 years ago
3 0

Answer:

  x° = 61°

Step-by-step explanation:

Both of the "unknown" angles in the triangle are equal, since their opposite sides have equal lengths. (The triangle is isosceles.) The sum of angles in a triangle is 180°, so we have ...

  58° + x° + x° = 180°

  2x° = 122° . . . . subtract 58°, collect terms

  x° = 61° . . . . . . . divide by 2

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Step-by-step explanation:

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