1. In the diagram below, mzBDC = 100° MZA = 50°, and m2DBC = 30°
B
A
с
Which statement is true?
(1) AABD is obtuse
(2) AABC is isosceles
(3) LABD = 80°
(4) AABD is scalene

a) justify

step-by-step explanation:

justifying is just part of everyday life. justify kind of means proof so i think the answer is a) justify.

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180

b

step-by-step explanation:

multiply each number by ten to get a simplified answer of 7/1.