Question

use the isosceles triangle diagram below to complete the statements:
the little red tick marks are called.
side ac is congruent to.
angle a is congruent to.

Explanation:

Step1: Identify tick marks name

In geometry, the little red tick marks on sides of a triangle are called congruence marks. They indicate that the sides are congruent (equal in length).

Step2: Find congruent side to \(AC\)

Since it is an isosceles triangle and from the congruence marks, side \(AC\) is congruent to side \(BC\).

Step3: Find congruent angle to \(\angle A\)

In an isosceles triangle, the base angles (angles opposite the congruent sides) are congruent. So, \(\angle A\) is congruent to \(\angle B\).

Answer:

The little red tick marks are called congruence marks.
Side \(AC\) is congruent to \(BC\).
Angle \(A\) is congruent to \(\angle B\).