31 km9 km find the area of the triangle
1 answer:
You might be interested in
Answer:
Brainliest!!
Step-by-step explanation:
In plane Euclidean geometry, a rhombus is a quadrilateral whose four sides all have the same length. Another name is equilateral quadrilateral, since equilateral means that all of its sides are equal in length.
-Wikipedia
See picture
