Question

an exterior angle of a triangle is measure 110 degree and one of the interior angle 40 degree.find the measure of all angles of the triangle.​

Answer 1

Answer:

Its an isosceles triangle

Step-by-step explanation:

Answer 2

let a triangle abc and an exterior angle acd=110 and angle abc=40 degree

as we know the sum of opposite interior angle =exterior angle

so,

40 degree+angle bac=110 degree

angle bac=110-40=70degree

now,

sum of all angles of a triangle=180 degree

angle (a+b+bca)=180

(40+70+bca)=180

angle bca =180-110=70

therefor,

angle a=70degree,angle b=40 degree(given)and angle bca=70 degree