1 So, the angles of an equilateral triangle are Congruent Angles. 2  A square and a rectangle have all their angles measuring 90Â°. So, the angles of a square and a rectangle are Congruent Angles. 3  Congruent Angles Figures have the same shape and size.  Congruent Angles Segments have the same length.
The Seachoice River Anchor will also catch and hold better on rough bottoms. Black vinyl-coated to protect the finish of your boat. Available in 12 and 15 lbs for smaller boats. Look to the 20 or 30 pound anchor for a typical pontoon.
What I like about my plow anchor is that I do not need chain. Chain is a pain in the posterior padding on a pontoon boat because it will leave rust stains on your floor (carpet or vinyl). So 150' of rope is all I need to anchor in the current in about 20-40' of water. Get the 15lbs or higher (upsize it one size from what is says will hold your boat).