Question

Q. 3) Measurements of some angles are given below. Using the symbol of congruence write the names of the pairs of congruent angles.
(1)∠LMN = 75°
(2) ∠PQR = 90°
(3) ∠XYZ = 105°
(4) ∠ABC = 360°
(5)∠DEF = 90°
(6) ∠GHI =75°
(7) ∠ JKL = 360°
(8) ∠MNO = 105°​

Answer 1

Answer:

Answer:

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Step-by-step explanation:

 Measure of the angle   Type of angle

(1) 180° (a) Zero angle

(2) 240° (b) Straight angle

(3) 360° (c) Reflex angle

(4) 0° (d) Complete angle

ANSWER:

 Measure of the angle   Type of angle

(1) 180° (b) Straight angle

(2) 240° (c) Reflex angle

(3) 360° (d) Complete angle

(4) (i) An angle whose measure is less than 90∘ is an acute angle.

(ii) An angle whose measure is 0∘ is a zero angle.  

(iii) An angle whose measure is bigger than 180∘ but less than 360∘ is a reflex angle.

(iv) An angle whose measure is 360∘ is a complete angle.

(v) An angle whose measure is 180∘ is a straight angle.  

(vi) An angle whose measure is bigger than 90∘ but less than 180∘ is an obtuse angle.  

(vii) An angle whose measure is bigger than 90∘ but less than 180∘ is an obtuse angle.  

(viii) An angle whose measure is 90∘ is a right angle.0° (a) Zero angle