6 — Triangle Areas

Triangle Areas

Solution & Explanation · ID: 79A5D05D

Question

Find the area of a triangle with a base of 10 feet and a height of 4 feet.

Hint

Use the formula A = ½bh and substitute the given values.

Concept

The area of a triangle is found using the formula A = ½ × base × height. The base and height must be perpendicular to each other.

Show Answer

20 square feet

Show Solution
1

Identify the given measurements: base = 10 feet, height = 4 feet

2

Apply the triangle area formula: A = ½ × base × height

3

Substitute the values: A = ½ × 10 × 4

4

Calculate: A = ½ × 40 = 20 square feet

A triangle with base labeled '10 ft' along the bottom edge. A dashed vertical line shows the height labeled '4 ft' perpendicular to the base. Inside the triangle is written 'Area = 20 sq ft'. The formula A = ½ × 10 × 4 = 20 is shown below the triangle.