Answer:
11 cm.
Explanation:
The formula for the area of a triangle is given by:
A = (1/2)bh
where A is the area, b is the base, and h is the height (or altitude) of the triangle.
We are given that the area of the triangle is 110 cm and the base is 20 cm. Substituting these values in the formula, we get:
110 = (1/2) × 20 × h
Simplifying the equation, we get:
110 = 10h
h = 11 cm
Therefore, the height (or altitude) of the triangle is 11 cm.