Question

ABC is a triangle in which AB=AC=4 cm and angle A=90 degrees. Calculate the area of triangle ABC.

Answer 1

Answer on Question #44042 – Math – Geometry

ABC is a triangle in which AB=AC=4 cm and angle A=90 degrees. Calculate the area of triangle ABC.

Solution

The Area of triangle ABC is calculated by the following formula:

$$S _ {\Delta A B C} = \frac {1}{2} | A C | \cdot | A B | = \frac {1}{2} \times 4 \, \text{cm} \times 4 \, \text{cm} = \frac {16}{2} \, \text{cm}^2 = 8 \, (\text{cm}^2)$$

Answer: 8 cm².

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