Question

2 PES Angle A in triangle ABC is obtuse. Can angle B or angle C be obtuse? a) Angle B Select) be obtuse. b) Angle c Select) be obtuse.

Answer 1

No, angle B or angle C cant be obtuse

since its stated in the question that,

angle A >9O degrees

assuming we say,

Angle B is obtuse.

that is Angle B > 9O degrees

So, we get the sum of two angle is greater than 18O degrees,

that is

18O degrees

But recall, in order to form a triangle the sum of all the three angles must be equal to 18O degrees.