Answer:
The measure of the base angles of triangle TIC , that is ∠C and ∠T is 40°.
Explanation:
In Isosceles ,Δ TIC
Given : ∠I= 100°
To find : ∠C= ?, ∠T= ?
Solution:
Isosceles triangle has two equal sides. And angles opposite to equal sides are equal.
So,∠C = ∠T =x
In Δ TIC
∠I + ∠T + ∠C = 180° (Angle sum property of triangles)
100° + x + x = 180°
2x = 80°
x = 40°
∠C = ∠T = x = 40°
The measure of the base angles of triangle TIC , that is ∠C and ∠T is 40°.