Group 4 trigonometry

MAKTAB KEJURUTERAAN JEFRI BOLKIAH

TRIGONOMETRY CLINOMETER

CONTENTSClinometerObjective Formulae

Calculation1. Ahmad2. Aniyah

3. Rahman4. Hazwan

Comparison

CLINOMETERWhat is clinometer?Things used:-

1. Drinking straw2. Tape 3. Protractor4. String5. Mass( 5 to 10 gram)

OBJECTIVE To measure the height of a real-life structure

Light

FORMULAE

Hypotenuse(Hyp)

Adjacent(Adj)

Opposite(Opp)

Tan X° = Opp Adj

CALCULATION

AHMADAngle = 48ºDistance = 439 cmEye level = 152 cm

Tan 48° = 439 Adj

Adj = 439 Tan 48º

= 395.28 cm

Therefore: total height = 395.28 +152 = 547.28 cm

Eye Level

(height)

Distance

ANIYAH

Eye Level

(height)

Distance

Angle = 40ºDistance = 340 cmEye level = 142 cm

Tan 40° = 340 Adj

Adj = 340 Tan 40º

= 405.20 cm

Therefore: total height = 405.20 +142 = 547.20 cm

RAHMAN

Eye Level

(height)

Distance

Angle = 33ºDistance = 254 cmEye level = 156 cm

Tan 33° = 254 Adj

Adj = 254 Tan 33º

= 391.12 cm

Therefore: total height = 391.12 +156 = 547.12 cm

HAZWAN

Eye Level

(height)

Distance

Angle = 28ºDistance = 208 cmEye level = 156 cm

Tan 28° = 208 Adj

Adj = 208 Tan 28º

= 391.19 cm

Therefore: total height = 391.19 +156 = 547.19 cm

COMPARISON

439 254340

208

Heig

ht

of

the

Lig

ht

Distance

Ahmad HazwanRahmanAniyah

Total Height = 5.47m