Question

In a triangle one angle is 80 degree and the other two angles are such that one is lesser in measure than the other by 20 degree . What are the measure of these angles .

Answer 1

Answer:

60° & 40°

Step-by-step explanation:

suppose A,B,C are 3 angles of triangle

where A = 80°

so in triangle <A+<B+<C=180°

80°+<B+<C=180°

<B+<C=180°-80°

<B+<C=100°

as one angle 20° lesser than other so

<B is 60° and <C is 40°