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BD bisects ∡ABC which of the following must be true? AB = BC ∡ABC is acute ∡ABD ≅ ∡CBD ∡ABD ≅ ∡ABC obtuse right Which type of angle has a measure greater than 0o but less than 90o? adjacent acute O D E F m∡DOF = If m∡DOE= 33o and m∡EOF = 11o
What is the measure of ∡DOF? O If m∡EOG = 64o and m∡FOG = 38o, then what is the measure of ∡EOF? E F G 16 64 26 90 O E If m∡EOG = 64o use the expressions for each angle below and find the value of x. 4x + 14 2x + 8 G F The value of x = Find m∡JUT = Classify ∡JUT acute right obtuse straight degrees KM bisects ∡LKJ. m∡LKJ = 68o and the m∡JKM = (4x-2)o Find the value of x. x = (4x - 2)o Another way to correctly name ∡1 below is: 1 2 E,D,W ∡edw ∡EDW ∡D Another way to correctly name ∡WDC is: 1 2 ∡DWC ∡cdw ∡D ∡2 Use the protractor to measure the angle pictured below J K L m∡KJL = 130o 53o 127o 50o Use the protractor to measure the angle pictured below K J L m∡KJL = 81o 99o 100o 90o Use the protractor to measure the angle pictured below J K L m∡JLK = 30o 25o 165o 155o Classify the angles by their measure. A N Straight angle ? L acute angle ? B M C Q G J right angle ? obtuse angle ? H R S |