Question

in a triangle ABC, AB = AC and <A=70degree, findtheangles, <B and <C​

Answer 1

Answer:

Step-by-step explanation:

Isosceles triangle ..

<B and C = 52

Answer 2

Answer:

B = 55

C= 55

Step-by-step explanation:

Here

AB=AC

therefore triangle ABC is equilateral triangle

& from the condition of 'SAS'

we apply The total sum of triangle is 180

therefore

m|_A + m|_B+ m|_c = 180 _____(a)

m|_A = 70 & from the condition of ' SAS '

m|_B= m|_C

from the eqn (a)

70+ m|_B+m|_B= 180 (°.° |_B = |_C)

|_B+m|_B= 180 -70

.°. 2 m|_B = 110

.°. m|_B= 110/2 = 55

.°. m|_B = m|_C = 55