Answer:
<h3>The correct answer is <u>D: -30</u></h3>
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since the polygon has 8 chambers the angle of one chamber = 360/8 = 45°
so the angle WOP = 45°
now drawing a imaginary line which seperates the triangleWOP into half
so the angle of imaginary line is 45/2 = 22.5
sin(theta) = opp/hyp
since WP (opp) is unknown. take as x
sin(22.5) = x/44
0.383×4 = x
x = 1.532 (app) = 1.5 cm
perimeter = 1.5 × 8
= 12 cm
area of triangle WOP = 2×1/2 ×bh = bh
= 4×1.5
= 6 cm²
so the area of regular polygon = 8× area of a triangle
= 48 cm²
187-16= 171
171 / 9= 19
The books were $19 dollars each.
Answer:
a = 6
TV = 52
Step-by-step explanation:
TU + UV = TV
3a - 4 + 6a + 2 = 5a + 22
Add like terms in RHS
3a + 6a - 4 + 2 = 5a +22
9a - 2 = 5a + 22
Add 2 to both sides
9a = 5a + 22 + 2
9a = 5a + 24
Subtract 5a from both sides
9a - 5a = 5a + 24 - 5a
4a = 24
Divide both sides by 4
4a/4 = 24/4
a = 6
TV = 5a + 22
= 5*6 + 22
= 30 + 22
TV = 52
