Answer:
m∠A = 101*
Step-by-step explanation:
m∠A = (25x + 1)*
m∠B = 82*
m∠C = (25x - 2)*
m∠D = (20x - 1)*
Find m∠A. Key: solve for x
(25x + 1) + 82 + (25x - 2) + (20x - 1) = 360*
Subtract 82 from both sides
(25x + 1) + (25x - 2) + (20x - 1) = 278*
…
x = 4
Now substitute x for 4 in A measure
(25x + 1)
(25(4) + 1)
(100 + 1)
101
m∠A = 101*
