Question

I need numbers 18 20 and 21 answered This is My Math homework need y’all To reply it needs To be done by 11

Answer 1

18. The stand is 4 1/2 feet.

The arm should be 1/4 the way down.

Divide 4 1/2 by 4:

4 1/2 / 4 = 1 1/8 feet.

20.

F is a 90 degree. H is more than 90.

G looks like it is 45

I would say the answer is J.

21.

Perpendicular means the two pieces would be 90 degrees from each other.

This would be A.

Answer 2

18. G

20. H that is about a 30 degree angle which would go down.

21. D because the lines are 90 degrees from each other

Oh also bonus 19. is A. a sphere not circle

Hope I helped!!!!

Pls mark me brainliest!!!