The pied piper and his friends are walking around a track that is shaped like a regular pentagon. Each side measures 85 feet. If they make 3 complete trips around the track, how far will they have walked?
255 ft
500 ft
1275 ft
1530 ft
Find the perimeter of a rectangle with diagonal length 13 and longer side length 12.
30
34
47
60
The perimeter of an isosceles trapezoid is 92. Draw an isosceles trapezoid and label the top parallel side x+2, and label the bottom longer parallel side as x+10. Label the left side of the figure as x. Use this information to find the value of x.
10.7
20
26.7
40
Find the perimeter of a trapezoid with base length = 28, top length = 8, left side length = 15, right side length = 12, and height = 10. Draw a picture to help you.
56 ft.
63 ft.
73 ft.
280 ft.
The diameter of a circle is 15 inches. Find the circumference to the nearest tenth of an inch.
22.5 in.
47.1 in.
94.2 in.
176.
2007-06-06 04:32:05 · 7 answers · asked by Smith 1 in Science & Mathematics ➔ Mathematics
1275
34
i cant do this one in 2 seconds in my head like the others
63
47.1
2007-06-06 04:51:22 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Answer 1:
Each side is 85 feet. So, the perimeter of the regular pentagon is 5*85 = 425 feet. They cover the perimeter 3 times.
Distance covered = 3*425 = 1275 feet
Answer 2:
Diagonal = 13 units
Longer side = 12 units
When you draw the diagonal of a rectangle, you get two congruent right triangles. The diagonal is always the hypotenuse.
(Shorter side)^2 + 12^2 = 13^2
(Shorter side)^2 + 144 = 169
(Shorter side)^2 = 25
Shorter side = 5 units
Perimeter = 2(Longer side + Shorter side)
= 2(12 + 5)
= 2*17
= 34 units
Answer 3:
The fact that the trapezoid is isoscles means that the non-parallel sides (the left and the right sides) are equal. Meaning we can mark them both as x.
Perimeter = sum of all the sides
x + x + x + 2 + x + 10 = 92
4x + 12 = 92
4x = 80
x = 20 units
Answer 4:
There is no need for height.
Perimeter = sum of all the sides
= 28 + 8 + 15 + 12
= 63 units
Answer 5:
d = 15 in.
Circumference = pi * d
= 15 pi
Taking pi as 3.14 (That's the only way to solve this),
C = (15 * 3.14) inches
Circumference = 47.1 inches
2007-06-06 05:12:38 · answer #2 · answered by Akilesh - Internet Undertaker 7 · 0⤊ 0⤋
1. since pentagon has 5 sides and they walked these sides thrice so multiply 85ft by15 so ans is 1275ft
2. by pythagorus th 13^2=12^2+side^2
i.e. other side =5
perimeter=2(12+5)=34
3. since trape is isos hence opp non parallel sides are equal
perimeter=x + x + (x+2) + (x+10)
92=x+x+(x+2)+(x+10)
92=4x+12
x=20
4. perimeter=sum of sides=28+8+15+12= 63ft
5. diameter= 2 * radius
r=15/2
circumference = 2 * (22/7) * r = 330/7 = 47.1 in
2007-06-06 04:56:41 · answer #3 · answered by Anonymous · 0⤊ 0⤋
1. 85x5x3
2. 13+12+5
3.x+x+x+2+x+10=92
4x=80
x=20
4.15+8+12+28
5. 3.14x15
2007-06-06 04:48:44 · answer #4 · answered by mom 7 · 0⤊ 0⤋
If each side of the triangle is 24 inches long, then the whole wire is 72 inches long. 24 multiplied by 3 - three, because a triangle has three sides - equals 72. A square has four equal sides. So to get the length of one side, you divide 72 by four. 72 / 4 = 18 A side of the square would be 18 inches. Hoped this helped!
2016-05-18 00:25:52 · answer #5 · answered by ? 3 · 0⤊ 0⤋
Seriously, Son, none of these are difficult. If you can learn how to cut and paste, you can do these problems. Just lifting them from whoever does them for you is not helping your education, at all.
2007-06-06 04:45:12 · answer #6 · answered by Anonymous · 1⤊ 0⤋
this is ridiculous. do your own homework/test, or at least try and come back if there's a specific concept you don't understand.
2007-06-06 04:46:06 · answer #7 · answered by socialistmath 2 · 2⤊ 0⤋