Question

Triangle abc is similar to triangle pqr if angle a equals to 50 degres angle b equals to 60 degres then angle r is dash

Answer 1

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Given That:- ∆ABC = ∆PQR

So that,

<A = <P
<B = <Q
<C= <R,

<A = 50°
<B = 60°

Hence,

<P = 50° ( <P= <A)
<Q = 60° (<Q= <B)

So,

We know that the sum of all the angles of ∆ = 180°

=> 50°+60°+<C = 180°
=> 110° +<C = 180°
=> <C = 180°-110°

=> <C = 70°

Hence, <R = 70° (<R= <C)


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