Answer:
x = 105°
Step-by-step explanation:
interior angle of regular polygon = (180 x (n - 2)) / n
hexagon: (180 x 4) / 6 = 120
octagon: (180 x 6) / 8 = 135
x = 360 -120 -135 =105°
Answer:
x=24cm
y=20,78cm
Step-by-step explanation:
sen(30)= -> x*sen(30)=12 -> x== 24cm
cos(30)=y/x -> cos(30)= y/24 -> y=24*cos(30)= 20,78cm
1. If two secants intersect to form the vertex of an angle outside a circle and the sides of the angle intercept arcs on the circle, then the measure of the angle is equal to one-half the difference of the measures of the arcs intercepted by the sides of the angle. A prudent auxiliary line is a chord connecting points of intersection of the sides of the angle with the circle as shown at the right.<span>
</span><span>2. Inscribed angle theorem. The measure of an inscribed angle is equal to one-half the measure of its intercepted arc.
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According to 2. : measure of arc RT = 2 m (angle S) = 60
Apply 1. : m(angle U) = (arc RS - arc RT )/2 = (84 - 60)/2 = 12
The answer is b your welcome
2a
3c
4b
Cross multiply for 2
Put 4x-5=3x-10 and subtract 3 on both sides. After that add 10 to both sides for 3
Divide everything by 5 and multiply everything by -2 for 4