Given: angle 1 and angle 4 form a linear pair; angle 1 and angle 2 are supplementary

Prove: Angle 3 ~= angle 4

i really hope this helps

Step-by-step explanation:

Given

angle1 + angle2 = 180

angle3 + angle4 = 180

then angle1 + angle2 = angle3 + angle4 : substitution

    angle1 - angle3 = angle4 - angle2  : subtracts angle 3 and angle 2 from both sides

answer rather than having to add and subtract the measurements of the semi-circle, notice that the semicircle to the left of ad is actually identical in area to the blank semicircle-shaped space to the left of bc. so if we transferred the red semicircle into the blank space, we would end up with a square of side length 24 cm. the area of a square is s^2 = 24^2 = 676 cm^2.

u also answered this so i think u would know but i am here to

put in or use mine

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step-by-step explanation: