Question

find the value of x in triangle 50°, 70° and x°​

Answer 1

Answer:

50°+70°+x= 180°

120°+ x= 180°

x= 180°-120°

x= 60°

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Answer 2

☯GIVEN :

• First angle (∠1)= 50°
• Second angle (∠2) = 70°
• Third angle = (∠3) = x°

☯ TO FIND :

• The value of x.

➲SOLUTION :

We know that,

$\bigstar\boxed{\pink{ \mathfrak{Sum \: of \: all \: angles \: of \: triangle = 180^ { \circ}}}} \bigstar$

Now,

$: \implies \sf \angle1 + \angle2 + \angle3 = 180^ {\circ}$

$: \implies \sf 50^ {\circ} + 70^ {\circ} + x^ {\circ} = 180^ {\circ}$

$: \implies \sf 120^ {\circ} + x^ {\circ} = 180^ {\circ}$

$: \implies \sf x^ {\circ} = {(180 - 120)}^ {\circ}$

$: \implies \sf x^ {\circ} = 60^ {\circ}$

$: \implies \underline{\boxed{\bf{x = 60}}}$

$\huge{\therefore}$ The value of x is 60.