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.
Holding Power for the two most widely used anchors are as follows: Stockless Type anchors, in sand, develop a holding power to weight ratio of seven to one. In mud they develop three to one. The angle of penetration in both cases is 45Âº.