Question

The measure of two angles in a triangle are given. Find the measure of the third angle.
30. 17° and 16.4° [A] 136.6° [B] 359.4° [C] 326.6° [D] 146.6°

Answer 1

@jim_thompson5910

Answer 2

all angles in a triangle add to 180 degrees

Answer 3

so

if x is the missing angle, and the other two angles are 17 and 16.4, then

17+16.4 + x = 180

Answer 4

and you would solve for x

Answer 5

would i add?

Answer 6

at first, yes

17+16.4 + x = 180

33.4 + x = 180 ... add

Answer 7

then you would subtract 33.4 from both sides to isolate x

Answer 8

so my answer woood be 146.6 right

Answer 9

yep

Answer 10

thank you!!

Answer 11

np