Answer:
21
Step-by-step explanation:
I think its 21, because the BD line divides the big triangle into 2 ones and they are equilateral triangle, sorry if I'm wrong
The answer is rhombus because first of all it is the only one who has no right triangle. Its also did not say that it has parallel sides. Plus it has 4 sides which means its a rhombus
Answer:h=f(X)-x-k
Step-by-step explanation:
F(x)=x+ h+k
h = F(x)-x -k