In the flag shown a the right, line a is a parallel to line b. if m< 1=150, find m< 4 and m< 7. justify

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What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi

The pyraminx is a rubik's cube-type toy in the shape of a tetrahedron. the pyraminx shown below has edges 15\,\text{cm}15cm long and vertical height h=12.2\,\text{cm}h=12.2cm. the triangle drawn with dashed lines is a right triangle. what is the distance rr? round your answer to the nearest tenth.