Question : In an isosceles triangle, if the unequal side is 8 cm and the equal sides are 5 cm, then the area of the triangle is:
Option 1: 12 cm2
Option 2: 25 cm2
Option 3: 6 cm2
Option 4: 11 cm2
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Correct Answer: 12 cm 2
Solution :
Use the Pythagorean theorem to find the length of the height (
The area of the triangle is given by
Hence, the correct answer is 12 cm
2
.
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