What is m∠a ?

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°

m∠A + m∠B + m∠C = 180° By Triangle Angle Sum Theorem

3x - 35 + x - 35 + x = 180

5x -70 = 180

5x = 110

x = 22

m∠A = 3x - 35

m∠A = 3(22) - 35

m∠A = 66 - 35

m∠A = 31

Hope this helps! ;)

720

step-by-step explanation:

first i did work 2nd i did work and 3rd i did work

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)