A=1/2 b*h
So substitute it in 1/2*1/2*4
1/2*1/2= 1/4
1/4*4= 4/4= 1 so the entrance is 1 foot tall
Complementary angles equal 90 degrees.
The first two graphs angle a and b equal 90’degrees.
The first two are correct
Answer:
-20
Step-by-step explanation:
32-12=20 so do it backwards. :D
