Question

in the figure given alongside abc is a straight line 1 if x -- 53 find y 2 if y is 1 upon 1/2 right anfles find x​

Answer 1

Answer:

(i) From the figure, ∠ABD + ∠DBC = 180° (Linear pair of angles) ⇒ x + y = 180° ⇒ 53°+ y = 180° (∵ x = 53”) ⇒ y = 180° – 53° ⇒ y = 127°

(ii) From figure again, x + y = 180° 1 + 3/2

x 90 = 180° ⇒ x + 1 1/2 right angles = 180° ⇒ x + 3/2 x 90 =180°

⇒ x + 135°= 180° ⇒ x = 180° – 135° ⇒ x = 45°

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

The mono-fibers do not trap air pockets like cotton and provide poor insulation.

Synthetic fibers burn more rapidly than natural.

Prone to heat damage.

Melt relatively easily.

Prone to damage by hot washing