Answer:
Gyu7
Step-by-step explanation:
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Hope i helped. Any questions u have ask me.
Answer:
the distance between these 2 would be 30 units
Step-by-step explanation:
Lets ignore the -13 for now because it doesn't have anything to do with the question
Now simply just add 10+ 20 (i took out the negative because it doesn;t make sense)
10+20
=30
plz brainliest :'D
Answer:
Area of a regular decagon with a perimeter of 60 ft. = 277 squared ft
Step-by-step explanation:
Decagon has 10 sides So 60/10 = 6 (each side = 6ft )
The sum of the interior angles of a decagon is 1 440 degrees.
There are 10 equal isosceles triangles of base angles 72 degrees in a decagon
Each isosceles triangle can subdivided into 2 right-angled triangles with height h and base length = (6/2) = 3 cm and base angle 72 degrees.
Height of right-angled triangle h = 3 tan 72 ft.
Area of 1 right-angled triangle = (1/2)(3)(3 tan 72) = 13.85 squared ft
Area of decagon = 20 right-angled triangles = 277 squared ft