Answer:
h=12 A=144 sq. cm.
Step-by-step explanation:
pythagoream therom:
9^2+h^2=15^2
81+h^2=225
h^2=225-81
h^2=144
Sq. rt h^2=sq. rt 144
h=12cm
1/2(b1+b2)h
1/2(5+19)12
1/2(24)12
1/2(288)
a=144
The length of one side is 5
I’m here for the points srrr
(3+h)2+3(3+h)+5
Distribute the 2 to 3+h and the 3 to 3+h
6+2h+9+3h+5
add like terms
20 + 5h
When a line is bisected, the line is divided into equal halves.
See below for the proof of 
The given parameters are:
- <em>AC bisects CD</em>
- <em>IJ bisects CE</em>
- <em>BH bisects ED</em>
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By definition of segment bisection, we have:
By definition of congruent segments, the above congruence equations become:
By segment addition postulate, we have:
Substitute
in 

Substitute
and 

Simplify

Apply division property of equality

By definition of congruent segments

Read more about proofs of congruent segments at:
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