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2 answers:
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Answer:
The value of m is 3
Step-by-step explanation:
We are given that ABCD is a parallelogram
Property of parallelogram : Opposite sides of parallelogram is equal
So, AB = CD and BC = AD
We are given that
BC =3m + 10
AD = 7m – 2
So, Using Property
BC=AD
3m+10=7m-2
12=4m
3=m
Hence The value of m is 3
Answer:
Step-by-step explanation:
The question is incomplete, as what is required is not stated and the triangle is not given.
So, I will solve generally.
The proof is as follows (see attachment for triangle)
From the attachment, we have:
Make f, e and d the subject
Add up the equations
Collect like terms
We have:
--- angles in a triangle
So, we have:
--- proved
