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Vera_Pavlovna [14]
3 years ago
8

Assessment items On a piece of paper, use a protractor and a ruler to construct △ABC with AB=6 cm , m∠A=80° , and m∠B=50° . What

is AC ?
A) 3 cm

B) 6 cm

C) 9 cm

D) 12 cm
Mathematics
2 answers:
fiasKO [112]3 years ago
8 0
We know that the summation of angles of a triangle is 180°. Then we find angle of C by,m∠A + m∠B + m∠C=180° 80° + 50° + m∠C=180°m∠C=180°- 80°+ 50° m∠C=50°Since we now angle of C, we can use Sine Law in solving for ACsinC/AB=sinB/ACsin50°/6 =sin50°/ACAC=6cmTherefore, AC is equal to 6cm.
Read more on Brainly.com - brainly.com/question/2951163#readmore
GuDViN [60]3 years ago
7 0
Hello!
Out of the following options the correct answer is:
<span>6 cm

Hope i helped!
-Cupcakegurl
</span>
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