Question

Q.29 Find supplementary angle of (x – 30)°
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Answer 1

Answer:

$\huge\fcolorbox{black}{pink}{Answer-}$

Let the other angle be y .

Therefore ;

x + y = 180

x + x - 30 = 180

2x = 210

x = 105°

y = 180 - 105

y = 75°

Answer 2

Step-by-step explanation:

The supplementary angles are of 180°.

Here ,

$\large{\underline{\red{\rm{Given:}}}}$

One angle = (x - 30)°

$\large{\underline{\red{\rm{To\:Fi d:}}}}$

Another angle ( or its supplement )

$\large{\underline{\red{\rm{Solution:}}}}$

Let the unknown angle be " x "

Now , ATQ -

→ x° + (x -30) = 180°

→ 2x - 30° = 180°

→ 2x = 180° + 30°

→ 2x = 210°

→ x = $\dfrac{240°}{2}$

→ x = 105 °

Unknown angle is 105°

→ Other angle = 180° - 105° = 75°

Angle 1 = 105° and Angle 2 = 75°

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