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25-02-2021
Mathematics

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What is the value of y? Round to the nearest tenth
Need help fast !!

What is the value of y Round to the nearest tenth Need help fast class=

Respuesta :

25-02-2021

Answer:

y=4 mm

Step-by-step explanation:

All angles in a triangle add up to 180: 180=∠M+∠P+∠N, ∠M=180-60-90=30

Use sine rule

a/sinA=b/sinB

PN/sin∠M=PM/sin∠N

y/sin30=8/sin90

y=8/1 *sin30

y=8*0.5

y=4 mm

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