Find the area of triangle ABC. Give your answer correct to 1 decimal place.
А
9 cm
C
10 cm
B
8cm​

“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .

I’m not sure about that