Select all that apply.

What types of triangles can have an obtuse angle?

scalene
isosceles
acute
right

Isosceles and Scalene

Step-by-step explanation:

I did some research and plus we learned about angles and triangles in Geometry.

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<Jayla>

1. 3

2. 4

3. 1

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-wfz

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐