Question

in ∆ABC, Angle B=90 degree and seg BD perpendicular to side AC, A-C-D then​

Answer 1

Answer:

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Step-by-step explanation:

a triangle ABC, angle ABC = 90 and BD is perpendicular to AC. If BD = 8 cm and AD = 4 cm then find the length of CD?

Geometry Angles with Triangles and Polygons

1 Answer

CW

Feb 1, 2017

C

D

=

16

cm

Explanation:

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givens: L ABC = 90 ° ,BD is perpendicular

to AC , BD = 8 , and AD = 4 ,as shown in the diagram .

lets L ACB = x , => L CBD = 90 - x,

=> L ABD = x, => L BAD =90 - x

=> ◇ABC , ◇ADB , and ◇ BDC are similar

1. bd = ad

cd db

2. 8 = 4

cd 8

3. cd = 8 x 8 = 16

4

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