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

1. How many moles of oxygen will occupy a volume of 2.5 liters at 1.2 atm and 25 °C?

Read the excerpt from chapter 10 of Animal Farm. There was enthusiastic cheering and stamping of feet. Napoleon was so gratified that he left his place and came

3x + 2y = -1 4x + 2y = -6

What happens to a cell cycle when cancer occurs?

please do help.. im really stuck..

Were new states in the west equal to the original 13 states?

Draft an argumentative research essay based on the outline you created in Lesson 1. Although you're free to find new sources and make changes to your original p

John Locke believed that:

Select all measurements that show equivalent volume to the rectangular prism shown below. Asnwer the bottom one to!! A. Length = 6 cm, Width = 8 cm, Height = 5

Reef-building coral are marine animals with single-celled algae living in their tissues. The coral provide protection for the algae and the algae provides food