Question

21. Fill in the blanks :
(a) Each angle of an equilateral triangle measures
degree
(b) Two lines in a plane which do not intersect anywhere is called
(m) sum of the angles forming a linear pair is always equal to
(d) reflex angle measures more than
and less than
degrees​

Answer 1

Answer:

a. 60⁰

b. parallel lines

c. 180⁰

d. more than 180⁰ and less than 360⁰

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Answer 2

Answer:

hey!! your answer

a) 60°

b) Parallel lines

c) 180°

d) more than 180 ° and less than 360 °

Step-by-step explanation:

a) Sal proves that the angles of an equilateral triangle are all congruent (and therefore they all measure 60°), and conversely, that triangles with all congruent angles are equilateral.

b) Parallel lines are lines in a plane that are always the same distance apart. Parallel lines never intersect.

c) The sum of angles of a linear pair is always equal to 180°. Such angles are also known as supplementary angles. The adjacent angles are the angles which have a common vertex.

d) A reflex angle is the larger angle, it's always more than 180° (half a circle) but less than 360

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