Numbers 7-18 i don’t understand how measuring angles work so if you could also provide some sort of explanation, that would be very . :

for 14, since theyre verticle angles, they are equal, so we can make an equation, 4x-26=3x+4, and you solve it to get x=30.

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