As per given by the question,
There are given that two triangle ,
[tex]\Delta CAT,\text{ and }\Delta RED[/tex]
And,
[tex]m\angle T=37,\text{ and m}\angle E=42[/tex]
now,
According to given question,
The given traingle is congruent.
So,
[tex]\Delta CAt\cong\Delta RED[/tex]
If two traingle is congruent, then from given figure;
Angle A is equal to angle E, and
In a triangle CAT we have angle T and angle A
so,
In a triangle CAT,
[tex]m\angle T=37,\text{ and m}\angle A=42[/tex]
Now,
The total sum of the angle is
[tex]180^{\circ}[/tex]
So, from triangle CAT,
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