Triangle tic is an isosceles triangle with a vertex angle i. if the measure of angle i = 90degrees, then find the measure of angle t. a. 15degrees b. 45degrees c. 90degrees d. 30degrees

Applying the definition of an isosceles triangle, given that isosceles triangle TIC has a vertex angle I of 90 degrees, the measure of angle T is: B. 45degrees

Recall:

Given that triangle TIC is an isosceles triangle:

Thus:

angle C and angle T are congruent or equal to each other.

Angle T = (180 - 90)/2

Angle T = 90/2

Angle T = 45 degrees.

In summary, applying the definition of an isosceles triangle, given that isosceles triangle TIC has a vertex angle I of 90 degrees, the measure of angle T is: B. 45degrees

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