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khiddalex
Group Title
Find the missing angle measure in QRS.
Q = _____°, R = 60°, S = 20°
A. 80
B. 100
C. 120
D. 60
 one year ago
 one year ago
khiddalex Group Title
Find the missing angle measure in QRS. Q = _____°, R = 60°, S = 20° A. 80 B. 100 C. 120 D. 60
 one year ago
 one year ago

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itsmylife Group TitleBest ResponseYou've already chosen the best response.3
R+S+Q=180 60+20+Q=180 Q=18080=100
 one year ago

itsmylife Group TitleBest ResponseYou've already chosen the best response.3
sum of three angles in a triangle is 180 degrees
 one year ago

whpalmer4 Group TitleBest ResponseYou've already chosen the best response.1
The interior angles of a polygon with n sides add up to (n2)*180 (degrees). This is a triangle, 3 sides, n = 3, so the sum of the interior angles is (32)*180 degrees. You've already got 60+20 = 80 degrees accounted for, so the remaining angle is 180 degrees  80 degrees = 100 degrees
 one year ago

whpalmer4 Group TitleBest ResponseYou've already chosen the best response.1
With a rectangle, there are 4 sides, so n = 4, and the interior angles add up to 2*180 degrees = 360 degrees.
 one year ago
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