Please help, giving brainliest Look at the figure above:
Triangle ABC is a right triangle with angle ABC equal to 90 degrees. The length of AC is 7 units and the length of AB is 5 unit
What is the length, in units, of segment CD? (5 points)
Select one:
a. 6
b. 8.5
c. 7
d. 9.8

Length of CD = 9.8 units

Step-by-step explanation:

Given AB || CD

angles BAC = ACD ................alternate interior angles

Angles CBA = CAD = 90   (given)

=>

Triangles ABC and CAD are similar (AAA)

AB / AC = CA / CD   ................Similar triangles have corresponding sides proportional

5 / 7 = 7 / CD

CD = 7*7/5 = 49/5 = 9.8

=

true

explanation:

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.