Wednesday, August 24, 2011

Practice with two angles of a triangle.

In the following problems, two angles of a triangle are given.  Find the missing angle and find the classifications of the triangle based on angle relations (isosceles, equilateral, scalene) and on largest angle (obtuse, right, acute).

1) 70°, 10° ____________ Classifications: ______________ and _____________

2) 70°, 20° ____________ Classifications: ______________ and _____________

3) 70°, 30° ____________ Classifications: ______________ and _____________

4) 70°, 40° ____________ Classifications: ______________ and _____________

5) 70°, 50° ____________ Classifications: ______________ and _____________

Answers in the comments.

1 comment:

  1. In the following problems, two angles of a triangle are given. Find the missing angle and find the classifications of the triangle based on angle relations (isosceles, equilateral, scalene) and on largest angle (obtuse, right, acute).

    1) 70°, 10°, 100°

    Classifications: scalene and obtuse

    2) 70°, 20°, 90°

    Classifications: scalene and right

    3) 70°, 30°, 80°

    Classifications: scalene and acute

    4) 70°, 40°, 70°

    Classifications: isosceles and acute

    5) 70°, 50°, 60°

    Classifications: scalene and acute

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