WebMay 2, 2024 · Alternate solution: We can see that ∠ADB is an exterior angle of triangle ABD, and it is equal to the sum of the measures of ∠BAD and ∠ABD (recall that the measure of an exterior angle of a triangle is the sum of the measures of the two remote interior angles). Therefore, m∠BAD = m∠ADB - m∠ABD = 60 - 20 = 40 degrees. WebMay 24, 2024 · To find : the measure of ∠CDE = ? solution : CD and DE are tangents to circle A. so, ∠DCA = 90° and ∠DEA = 90° [ ∵ tangent is perpendicular to radius of circle. ] and arc CE = 105° ⇒∠CAE = 105° now from quadrilateral DCAE , ∠CDE + ∠DCA + ∠DEA + ∠CAE = 360° ⇒∠CDE + 90° + 90° + 105° = 360° ⇒∠CDE = 180° - 105° = 75°
In circle a shown below, marc bc is 71° and marc ef is 78°: points …
WebOct 18, 2024 · Answer: ∠CD = 52°. Explanation: We see that: ∠BC + ∠CD = ∠ BAD We know that Arc BC measures 96° and arc BAD measures 148°. Replacing this data into the equation and solving for Arc CD, we get: 96° + ∠CD = 148°; ∠CD = 148° - 96°; ∠CD = 52°. Quick expert help Get an expert answer for 15 minutes in the Studen app or website free! WebIn circle A shown below, the measure of ∠BAD is 148°: Circle A with angle BAD measuring 148 degrees; points B, C, D lie on Circle A. If m Arc BC is 96°, what is m Arc CD ? (3 points) 96° 22° 52° 148° See answer Advertisement mjha79706 Answer: where is the circle Step-by-step explanation: plzz insert a figure to get your answer thanku !! ramshackled
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WebAug 14, 2024 · Summary. To find an unknown angle measure, sometimes it is helpful to write and solve an equation that represents the situation. For example, suppose we want to know the value of \(x\) in this diagram. WebWith a radius of 18, the circumference is C=2πr=36π. So the arc is 14π/36π of the circumference or 7/18 of a circle. In degrees, 7/18*360 = 140 degrees for arc BA, and since you already know 76 degrees, 140-76=64 degrees. How are you getting 144 degrees? 1 comment ( 2 votes) murarisettigayatri20 2 years ago WebFeb 2, 2024 · The area of a circle can be calculated using its radius as follow: a = π * (r ^ 2) If the diameter is known: Using the diameter, the care of a circle can be calculated as follow: a = (π * d) / 4 If the circumference is known: The formula below can help you to calculate the circle: a = c ^ 2 / (4 * π) What are the 3D version of a circle? overpass callout map