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# In the following figure, AF is the perpendicular bisector of DN. What is the measure of angle ADF?

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+1679

In the following figure, AF is the perpendicular bisector of DN. What is the measure of angle ADF?

A. 90

B. 15

C. 115

D. 65

In the following figure, AF is the perpendicular bisector of DN. What is the measure of angle TDF?

A. 115

B. 90

C. 15

D. 65

Jan 29, 2020

#1
+21931
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Start at F ....BOTH angles there are 90 degrees

so for the triangle on the RIGHT   (remember all angles of a triangle add to 180 degrees?)

the angle on the right side at A would equal   180    -    90 - 65 =  25 degrees

AF BISECTS angle A...so both of the angles at A are equal  at   25 degrees

Now you should be able to figure the angle at D.....

Another way:

Both angles at A are equal       both angles at F are equal

so the remaining angles at D and N have to be equal.....(remember all angles of a triangle add to 180 degrees?)

Jan 29, 2020
#2
+1679
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1. C

2. C

macabresubwoofer  Jan 29, 2020
#3
+1068
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Sorry ... but 1. is D

CoolStuffYT  Jan 29, 2020