A. 30° C. 120°
B. 90° D. 180°
2. The gazebo in the park is an octagon. Each side of the gazebo is 4 feet long. What is the perimeter of the gazebo?
A. 24 feet C. 30 feet
B. 32 feet D. 36 feet
Thanks so much
2006-06-22 16:16:44 · 5 answers · asked by arriallmax 1 in Science & Mathematics ➔ Mathematics
C-120... Two supplementary angles must equal 180.... 60+120=180
B-32 feet... 8*4=32
2006-06-22 16:22:15 · answer #1 · answered by ♥-=-TLCNJ19-=-♥ 5 · 0⤊ 1⤋
when angles are supplementary,their sum should be equal to 180degrees.
one angle is given to be 60,assume the other to be unknown x
thus 60+x=180
x=180-60
=120 degrees which is option c
octagon is an eight sided figure .perimeter is the sum of all the sides
since each side is 4 ft,
add 4 eight times or 8multiplied by 4
=32 ft which is option b
2006-06-22 16:26:32 · answer #2 · answered by champ 2 · 0⤊ 0⤋
120 C. because supplementary means the angles add up to 180degrees
4*8=32 B.
8 sides on an octagon and perimeter means how many feet around
2006-06-22 16:19:15 · answer #3 · answered by ♥ The One You Love To Hate♥ 7 · 0⤊ 0⤋
1) 180 - 60 = 120
2)Perimeter is the addtion of all sides, so therefore, 4+4+4+4+4+4+4+4 = 32feet in other words, 4*8 = 32feet
I hope I'm right
2006-06-22 16:21:20 · answer #4 · answered by whiteoleander3388 2 · 0⤊ 0⤋
answer for first one is 120.
since supplementry means 180.
so 180-60=120
2006-06-22 16:19:51 · answer #5 · answered by ayi_hi 2 · 0⤊ 0⤋