Solve the equation for a: \frac{a}{\sin(46^\circ)}=\frac{56}{\sin(63^\circ)}Z

Wotzdorfg

Wotzdorfg

Answered question

2021-10-28

Solve the equation for a: asin(46)=56sin(63) by using the cross-products principle to clear fractions from the proportion: If ab=cd,  then  ad=bc.(b0  and  d0)

Answer & Explanation

coffentw

coffentw

Skilled2021-10-29Added 103 answers

Step 1
Given equation:
Using the principle of fractions:
ab=cd
We know that :
We cross multiply the fractions and then we get :
ad=bc
Step 2 Hence,
We use the same principle and cross multiply the fractions to get:
asin(63)=56sin(46)
a=56sin(46)sin(63)
Since  
sin(46)=0.719
sin(63)=0.891
Substituting these values in the equation for a:
a=56×0.7190.891
a=40.2640.891=45.19
a=45.19
Answer rounded to the nearest tenth:
Value of a :=45.2

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