Question
Find the third side in the given triangle. Name the theorem used to find the third side. What are such triangles called? [3 MARKS]
Answer: Option A
:
Name: 1 Mark
Theorem: 1 Mark
Answer: 1 Mark
Since ∠C is 90∘, the following is a right-angled triangle.
The theorem used is known as Pythagoras Theorem.
In a right angled triangle,
Base2 + perpendicular2 = hypotenuse2Â (Pythagaros's Theorem)
Or, AB2 = BC2 + AC2
Or, AB2 = 16 + 9 = 25
Or, AB = √25 = 5
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:
Name: 1 Mark
Theorem: 1 Mark
Answer: 1 Mark
Since ∠C is 90∘, the following is a right-angled triangle.
The theorem used is known as Pythagoras Theorem.
In a right angled triangle,
Base2 + perpendicular2 = hypotenuse2Â (Pythagaros's Theorem)
Or, AB2 = BC2 + AC2
Or, AB2 = 16 + 9 = 25
Or, AB = √25 = 5
Was this answer helpful ?
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