Jojo823 Jojo823

03-11-2017
Mathematics

contestada

find CDE, if BAC=50 and BCA Is a right angle.
a) 40
b) 50
c) 90
d) 180

find CDE if BAC50 and BCA Is a right angle a 40 b 50 c 90 d 180 class=

Respuesta :

mathstudent55 mathstudent55

03-11-2017

Because of the two sets of parallel lines, two pairs of corresponding angles are congruent, and the triangles are similar.

Since m<BAC = 50, then m<DCE = 50.

mBCA = 90, and m<DEC = 90

m<DCE + m<DEC + m<CDE = 180

50 + 90 + m<CDE = 180

m<CDE = 40

Answer Link

Otras preguntas

Why is capitalism called a free - market economy?

491852 rounded to the nearest hundred thousand

when you subtract one negative integer from another will your answer be greater than or less than integer you started with? Explain your reasoning and give exa

Segment AB is congruent to segment AB. This statement shows the property. a. reflexive b. symmetric c. transitive d. substitution

how were old imperialism and new imperialism similar

"The product of 4 and a number plus 17 is 5" -translate and solve

In two or three sentences, describe the connection between the development of steel and the development of railroads. helppppp .

Artaud noticed that if he takes the opposite of his age and adds 40, he gets the number 28. How old is Artaud

What are the square roots of 576? A. −14 and 14 B. −24 and 24 C. −28 and 28 D. −288 and 288and yes I know, I accidently posted this in the English

Will every solid with the same dimensions have the same density?