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On a piece of paper, use a protractor to construct a triangle with angle measures of 60° and 80°. Select from the drop-down menu to correctly classify the triangle. A triangle with angle measures of 60° and 80° is______triangle.
A. acute
B. obtuse
C. right angle

Respuesta :

soooobored
the sum of interior angles of a triangle must add up to 180 degrees

if the triangle has an angle that is greater than 90 degrees, then it is considered obtuse

if the triangle has an angle that is 90 degrees, then it is considered right

if all angles are less than 90, then it is acute

find the missing angle "x"

180=60+80+x

is angle x less than, greater, or equal to 90 degrees?
fichoh

The triangle described would have the angles 60°, 80° and 40° meaning that all the angles are less than 90°. Hence, the triangle is an acute - angled triangle.

  • Acute angled triangles describes triangles in which all its interior angles are less than 90°.

  • The third angle in the triangle can be calculated thus (180 - (60+80)) = 40°

  • Therefore, all the 3 angles are less than 90°. Hence, the triangle is acute.

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