Question

One of the equal angles of an isosceles triangle is 60°. Find the third angle of
this triangle.

Answer 1

Answer:

60

Step-by-step explanation:

180-60=120-60=60

all 3 will be of 60 degrre

Answer 2

⇝Given :-

• ➵ One of the equal angles of an isosceles triange is 60° .

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⇝To Find :-

• ➵ Find the 3rd angle.

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⇝Need to Remember :

${\red{\bigstar{\green{\text{Sum of all angles of a triangle = 180°}}}}}$

${\red{\bigstar{\green{\text{Two angles are equal in an isosceles triangle}}}}}$

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⇝Solution :-

• As 2 angles are equal and 60° sum of all the angles is 180° .

${{:{\longrightarrow{\bf{60° + 60° + 3rd \: angle = 180°}}}}}$

• Let the 3rd angle be x° .Now,

${{:{\longrightarrow{\bf{60° + 60° + x = 180°}}}}}$

• We will solve it. So,

${{:{\longrightarrow{\bf{60° + 60° + x = 180°}}}}}$

${{:{\longrightarrow{\bf{120° + x = 180°}}}}}$

${{:{\longrightarrow{\bf{ x = 180° -120° }}}}}$

${{:{\longrightarrow{\bf{ x = 60° }}}}}$

❒ Hence :

${\large{\orange{\twoheadrightarrow{\underline{\boxed{\pink{\mathfrak{\pmb{3rd \: angle \: is \: 60°.}}}}}}}}}$

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