Measurement of angle ABC=40°, find the measurement of arc BD in radians

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

55

step-by-step explanation:

a

step-by-step explanation:

u take $30 minus $24. the answer/original($30)