Answer:
the answer is 60°
Step-by-step explanation:
if you set 60=4x , then x = 15. (15•10)-45 = 105, meaning the third angle of the triangle is 75. then you multiply 15•4 = 60, and then the other angle would be 15•3 = 45. then 75+60+45 = 180
616.6 square cm
Area of a regular octagon
i think it would be the x- axis
I need these points more than you do
What do we do
