Question

in triangle ABC ,AB = AC and angle A = X + 10° and Angle B = 4X - 5° then find the measure of each angles​

Answer 1

Answer:

as AB=AC

so angle B = angle C

angle sum property

x+10+4x-5+4x-5=180

9x=180

x=20

angles are 30,75,75

Answer 2

Answer:

kindly see the answer below...

Step-by-step explanation:

Here,

In ΔABC, AB = AC and angle A = x+10°

angle B = 4x-5°

Therefore,

as AB = AC

so, angle B = angle C = 4x-5°

Now,

angle A + angle B + angle C =180

$or \: x + 10 + 4x - 5 + 4x - 5 = 180$

$or \: \: 9x = 180$

$or \: \: x = 20$

then,

the value of each of the angles are

angle A = 30°

angle B = 75°

angle C = 75°

thanks a lot..

plz mark♥♥..if this is helpful..