Step-by-step explanation:
Given : AD=CD and
∠3=∠4
To prove : Line DB bisects ∠ABC
i.e.∠ABD=∠CBD
Proof : Consider ΔABD and ΔCBD,
and
and
So, ΔABD ≅ ΔCBD (By SAS criterion}
Hence , By CPCT (corresponding part of congruent triangle}
∠ABD=∠CBD
Therefore, Line DB bisects ∠ABC.
ans:39
Tap on the photo
first prove triangle BHC similar to FDC.Reason(AA)
then,provrSBH and GBH congruent(SAS)
CB=CG
CBG is an isolesis triangle
angle G and CBG is X
angle BCG=180-90-12=180-78=102
X=(108-102)/2=39
Answer:
7 inches by 19 inches
Step-by-step explanation:
We can use a system of equations for this.
<em>x=length</em>
<em>y=width</em>
2x+2y=52 (Perimeter)
xy=133 (Area)
We must find x and y that fit both these equations.
Hope this helps :)
Answer:
#1: (8,-5)
#2: sorry i don't see b
#3: (-4,10)
Step-by-step explanation:
