42. Write an addition sentence about the angle measures. Use an unknown (x)
for one angle measure.
С
х
Then solve it.
29°
B
А
D

180-29=151

Step-by-step explanation:

151°

Question

42. Write an addition sentence about  the angle measures. Use an unknown (x) for one angle measure. Then solve it.

Solution given;

∡BAC=29°

∡CAD=x

we have

∡BAC+∡CAD=180°[ sum of angle of linear pair is 180°]

29°=x=180°

x=180°-29°=151°

Step-by-step explanation:

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh