Answer:
Step-by-step explanation:
We want to subtract
from
We set up the subtracttion problem to get:
We expand the parenthesis to get:
Group similar terms:
We simplify to get:
What is the value of x? 6 9 12 15
2 answers:
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Given:
ABC is an isosceles triangle in which AC =BC.
D and E are points on BC and AC such that CE=CD.
To prove:
Triangle ACD and BCE are congruent.
Solution:
In triangle ACD and BCE,
(Given)
(Common angle)
(Given)
In triangles ACD and BCE two corresponding sides and one included angle are congruent. So, the triangles are congruent by SAS congruence postulate.
(SAS congruence postulate)
Hence proved.
