Answer:
The answer would be 80 ° because 5×( 2 + 13 or x +1 ) is 80
Step-by-step explanation:
ABD is 80°
If DEB is 42 °
∠ ABD = 5(2X+1)
∠ DBC = 3X+6
∠ EBC = Y +135/2
∠ ABD and ∠ DBC are linear pairs
∴ ∠ ABD +∠ DBC = 180
∴ 5(2X+1) + 3X+6 =180
solve for x
∴ x = 13
∴∠ ABD = 5(2X+1) = 5(2*13+1) = 135
∠ DBC = 3x+6 = 3*13+6 = 45
∠ ABD and ∠ EBC are vertical angles
∴ ∠ ABD = ∠ EBC = 135
∴ y +135/2 = 135
∴ y = 135/2
Answer:
2.8571428571429
Step-by-step explanation:
Answer:
do 90 times or dvided by 12
Step-by-step explanation:
Answer:
Step-by-step explanation:
5. The opposite angles of a cyclic quadrilateral sum to 180 so
9y + 5 + 18x + 4 = 180 and
9y - 9 + 21x + 6 = 180
Solve this system to find x and y.
7. Solved in the same way.
Have to go right now so i cant help you any further.
D would be the true statement
