Mathematics, 16.10.2020 21:01 historyfanboy101
Lesha wants to prove that the measures of the 3 angles in a triangle always have a sum of 180°. She decided to prove
this conjecture using rigid motion. She began with triangle ABC shown in Figure 1.
Which statement best describes the rigid motion she used in Figure 2 to support her proof?
A. Reflect triangle ABC across AB and across AC.
B. Rotate triangle ABC 180° about the midpoint of AB and about the midpoint of AC.
C. Translate triangle ABC along directed line segment AD and along directed line segment AE.
D. Reflect triangle ABC across AB and then translate the image along directed line segment DE.
Answers: 3
Mathematics, 21.06.2019 18:40
Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.
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Mathematics, 21.06.2019 23:10
Point s lies between points r and t on . if rt is 10 centimeters long, what is st? 2 centimeters 4 centimeters 6 centimeters 8 centimeters
Answers: 2
Lesha wants to prove that the measures of the 3 angles in a triangle always have a sum of 180°. She...
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