math (core) lc2 project
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Math (core) LC2 Project. Osama Zaid Abdulla Al-Menhali 90131 11-03. Triangular Sail Boats and MATH . A sailboat is a boat that uses wind as its primary way to move around. A sail is simply a piece of fabric that is used to catch the wind to drive the boat across the water. - PowerPoint PPT PresentationTRANSCRIPT
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Math (core) LC2 Project
Osama Zaid Abdulla Al-Menhali9013111-03
Triangular Sail Boats and MATH
A sailboat is a boat that uses wind as its primary way to move around. A sail is simply a piece of fabric that is used to catch the wind to drive the boat across the water.
There are many different types and designs of Sailboats. Although these boats vary in size and craftsmanship, they are still sailboats.
The sailboat is a form of transportation, a type of recreation ranging from simple craft to the most elaborate racing yacht, and even a form of housing. A one-person boat with a tiny sail represents freedom.
TASK II
The sunfish Sailboat, as shown in the above figure, represents an isosceles triangle with the following dimensions, 13m, 13m, and 15m.
the measure of the Angle C
c2=a2+b2-2a.b.cosC 152=132+132- 13.13.cosC 225-169-169=-338 cosC cosC = -116/-338 cosC=0.3343195266 C=cos-1(0.3343195266)=70
the measure of the Angle A&B
SinA/a = SinB/b = SinC/c SinA/13 = Sin70/15 SinA= 13Sin70/15 =0.8144002713 A=Sin-1(0.8144002713 )=55 B=180 - (70+55)=55
The Area of Sail
Area=½ × a × b × sinC
=½ × 13 × 13 × sin70
= 79.4 m2
the shortest distance from the lower edge to the top
corner of the sail
Area=½ × b × h
79.4=0.5 × 15h
79.4=7.5h
h=79.4÷7.5
=10.6 m