Calculate the size of Angle A when two known angles are 80 degrees and 30 degrees

70°

Step-by-step explanation:

every triangle has a total of 180°, therefore 180-80-30=70°

i apologize if my answer is incorrect!

x=17

step-by-step explanation:

solve 3x-24=x+10

then that makes it 2x=34 because you subtract an x from both sides to get rid of the one on the right, and then you add 24 to both sides to get rid of the 24 on the left

divide by both sides by 2 to get your answer so that you can get your answer

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step-by-step explanation: