Answer:
∠A= 80°
Step-by-step explanation:
if they are supplementary then put them equal to 180
7x + 3 +7x + 23 = 180
14x + 26 = 180
14x = 154
x= 11
now plug in
7(11)+3
77+3= 80
The answer is 45 you put the 4 and the 5 togther
Answer:3
Step-by-step explanation:
We must find the radius so we can plug this into the formula for surface area.
Circumference =


We are going to plug this in as our radius for the most accurate answer.
The surface area of a sphere is

Surface Area =

≈ 451.93 units
Answer:
Step-by-step explanation:
m∠JXM + m∠NXP = 180° - m∠MXN = 90°