9) For equilateral triangle for turpentine is 420 23 for this angle of

1.	9) For equilateral triangle for turpentine is 420 23 for this angle of incidence angle of refrection will be a) 42° 23 b) 90°c) 50°12 d) 70°
Answer» $\large\fbox\red{A}\small\fbox\orange{N}\large\fbox\pink{S}\small\fbox\green{W}\large\fbox\blue{E}\small\fbox\purple{R}$ *This triangle is equilateral; we can TELL because each of its sides are the same length, a. To find the length of one SIDE, we NEED to divide the perimeter by 3:* $a = \frac{18 }{3} = 6$

9) For equilateral triangle for turpentine is 420 23 for this angle of incidence angle of refrection will be a) 42° 23 b) 90°c) 50°12 d) 70°

Answer»

$\large\fbox\red{A}\small\fbox\orange{N}\large\fbox\pink{S}\small\fbox\green{W}\large\fbox\blue{E}\small\fbox\purple{R}$

This triangle is equilateral; we can TELL because each of its sides are the same length, a. To find the length of one SIDE, we NEED to divide the perimeter by 3:

$a = \frac{18 }{3} = 6$

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9) For equilateral triangle for turpentine is 420 23 for this angle of incidence angle of refrection will be a) 42° 23 b) 90°c) 50°12 d) 70°​

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9) For equilateral triangle for turpentine is 420 23 for this angle of incidence angle of refrection will be a) 42° 23 b) 90°c) 50°12 d) 70°