Math, asked by simran70028, 8 months ago

find the value of a b c

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Answers

Answered by Saby123

Answer:

Angle A = 70°

Angle B = 110°

Angle C = 50°

Step-by-step explanation:

See the attachment above .

Here , I have labelled the figure .

We know that the sum of all angles in a triangle is 180°

So , in ∆ABD , the sum of angles is 180°

=> 70° + 40° + Angle A = 180°

=> 110° + Angle A = 180°

=> Angle A = 70°

Now observe the straight line BDC .

Angle A and Angle B are supplementary .

So,

Angle B = 180° - Angle A

=> Angle B = 180° - 70°

=> Angle B = 110° .

We know that the sum of all angles in a triangle is 180°

So , in ∆ADC , the sum of angles is 180°

=> 110° + 20° + Angle C = 180°

=> 130° + Angle C = 180°

=> Angle C = 50°

This is the required answer .

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Answered by Anonymous

$\large\red{\underline{\underline{\rm{Here\:is\:the\:answer -}}}}$

$\large\green{\underline{\underline{\rm{Answer\:of\:a}}}}$

70° + 40° + a = 180°........[Angle-sum property]

110° + a = 180°

a = 180° - 110°

a = 70°

$\large\green{\underline{\underline{\rm{Answer\:of\:b}}}}$

a + b = 180° .............[Angles in linear pair]

70° + b = 180°

b = 180° - 70°

b = 110°

$\large\green{\underline{\underline{\rm{Answer\:of\:c}}}}$

20° + b + c = 180°........[Angle-sum property]

20° + 110° + c = 180°

130° + c = 180°

c = 180° - 130°

c = 50°

$\large\orange{\underline{\underline{\rm{Therefore -}}}}$

Angle a = 70°
Angle b = 110°
Angle c = 50°

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Answer by MANAS817 ✨✨✨

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