How Are Lighthouses Used
how are lighthouses used
3 math questions (A minute of your time is all i desire. because i need help)?
Popeye put colorful plastic tape around the edge of a triangular sail. The said had sides of 10ft. 15.ft and 18.ft. How many feet of tape did he use?
A lighthouse beacon can be seen 24 mi in all directions. What is the area over which the beacon can be seen?
How many tiles are needed to cover a square patio measuring 18 feet on a side if each title covers 1 foot?
=my work=
=if you'd like to stop reading here.=
=1. since the saiil is a triangle, apple the triangle forumula and then divide.
=2 do the area of a circle, since it its a crcle and there you go..
=I seriously dont get this one. cause if I do 18 x 1 i get 18 :/
1. He put tape on the edges. Add them up.
2. http://www.jiskha.com/display.cgi?id=1236051024
3. It is 18 feet square. 18 rows up. 18 rows down. Multiply 18x18
I am so sorry to say but the other person tried to help and multiplied wrong.
3.14x576 is 1808.64
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