Warm up. 30 . 8 0 . 100 . 180 . 100 . 260 . Wheel of Formulas!!. Central Angle. Angle = Arc. Inscribed Angle. Angle where the vertex is ON the circle. Inscribed Angle. 160 . The arc is twice as big as the angle!!. 80 . Find the value of x and y. 120 . . 120 . x.
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Angle = Arc
The arc is twice as big as the angle!!
Find the value of x and y.
1. If mJK= 80 and JMK = 2x – 4, find x.
x = 22
2. If mMKS= 56, find m MS.
Find the measure of DOG and DIG
If two inscribed angles intercept the same arc, then they are congruent.
Quadrilateral inscribed in a circle: opposite angles are SUPPLEMENTARY
In J, m3 = 5x and m 4 = 2x + 9.
Find the value of x.
x = 3
In K, GH is a diameter and mGNH = 4x – 14. Find the value of x.
4x – 14 = 90
x = 26
Example 5 Find y and z.
110 + y =180
y = 70
z + 85 = 180
z = 95