dannyellia1205 dannyellia1205

09-03-2018
Mathematics

contestada

For ΔABC, the measure in degrees of angles A, B, and C are 60, 55, and x + 20 respectively. What is the value of x?

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choixongdong choixongdong

09-03-2018

60+55+x+20 = 180
x + 135 = 180
x = 180 - 135
x = 45

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