Question

In a triangle <A+<B = 80 and <B+<C= 145° , then find the value of <B​

Answer 1

Answer:⤵️

angle B = 45°

Step-by-step explanation:⤵️

given,

angle A +angle B =80°

and

angle B +angle c =145°

we know that,

(angle A +angleB )+angle C = 180°

=> 80° + angle C = 180°

=> angle C = 100°

angle B +angle C = 145°

=> angle B + 100° =145°

=> angle B = 45°