The diagonals of the rectangle ABCD intersect at O. If ∠COD = 78°, then ∠OAB is:
a) 35
...
Mathematics, 02.11.2020 16:50, aesthetickait
The diagonals of the rectangle ABCD intersect at O. If ∠COD = 78°, then ∠OAB is:
a) 35
b) 51
c) 70
d) 110
Answers: 1
Mathematics, 21.06.2019 23:30, freesiareal2780
What are the measures of angles a, b, and c? show your work and explain your answers. 25 points
Answers: 1
Mathematics, 22.06.2019 00:30, ERIKALYNN092502
The scatter plot shows the number of animal cells clara examined in a laboratory in different months: plot ordered pairs 1, 20 and 2, 60 and 3,100 and 4, 140 and 5, 180 what is the approximate predicted number of animal cells clara examined in the 9th month?
Answers: 3
Mathematics, 22.06.2019 01:10, abadir2008
Given: ae ≅ ce ; de ≅ be prove: abcd is a parallelogram. we have that ab || dc. by a similar argument used to prove that △aeb ≅ △ced, we can show that △ ≅ △ceb by. so, ∠cad ≅ ∠ by cpctc. therefore, ad || bc by the converse of the theorem. since both pair of opposite sides are parallel, quadrilateral abcd is a parallelogram.
Answers: 3
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