We have added a new feature that allows members who are teachers to easily share access to the Math Antics website with their students at home. 5 x 8 40 cm base x height 40 2 20 cm². Area ½ ab sin C.
Use the formula base x height 2 to find the area of the triangle.
Use Pi 3 to estimate the circumference and area of each of the circles below. Math Antics Finding area of a rectangle and triangle April 1 2015 April 1 2015 seeleyjones We watched a video today to support and clarify ways to find the area of a rectangle and triangle. Mark as Read Scroll down to check out our Video Lessons. Angles in a triangle sum to 180 proof.