Question

Sarla made a drawing of a geometric figure for a fabric print. The figure was a quadrilateral with a pair of angles measuring 40° each. If the figure she drew is a concave polygon, which of these could be the measures of the other two angles?

210°, 80°

170°, 60°

230°, 50°

160°, 120°

Answer 1

@jim_thompson5910 help?

Answer 2

the polygon is concave, so at least one angle must be larger than 180 degrees

Answer 3

also, all 4 angles must add to 360 degrees

Answer 4

so A or C

Answer 5

yep, so far, so good

Answer 6

i dont get 360 when i add them up

Answer 7

which angles are you adding up

Answer 8

oh sorry :p it's C

Answer 9

for choice A

210+80+40+40 = 370

so that doesn't work

Answer 10

for choice C

230+50+40+40 = 360

so that does, nice job

Answer 11

230+50+40+40=360

Answer 12

yay thanks again!

Answer 13

yw