Question

draw an example of a triangle that has an area of 20 square units. Show that your triangle has this area

Answer 1

for the base u could use 10 and the height 4 becuz the area of a triangle is .5bh

Answer 2

Illustrative Mathematics


Solution

Answers may vary. 

Techniques include "completing" the triangle with sides of length 4 and 10 and arguing that half of its area must be 20 square units, chopping off and relocating a chunk of the right triangle to create a rectangle whose area is 20 square units, and "completing" individual unit squares to create a total of 20 unit squares.


Hope this helps