Question

in a isosceles triangle a base angle is 4 times its Vertical angle find all the angle of triangle​

Answer 1

Answer:

let the vertical angle be x

base angle =4x

ATQ,

x+x+4x=180

6x=180

x=180÷6

x=30

one vertical side is 30

another vertical side is 30

base side=4x=4×30=120

Answer 2

Answer:

Step-by-step explanation:

Let the vertical angle be x.

Then, the base angles of the isosceles angle will be 4x each (base angles in an isosceles triangle are equal).

According to Angle Sum Property,

4x + 4x + x = 180

=> 9x = 180

=> x= 180/9

=> x = 20

Thus, the angles are 20,80 and 80