Question

c) If square of AB + square of BC = square of AC. The triangle ABC must be a

right angled

Equilateral

Isosceles
Scalene​

Answer 1

Answer:

Right angled triangle

Step-by-step explanation:

Remember pythagoreus theorem .

AB square + BC square = AC square

and it applicable for only an right angled triangle .

Here in question it is same .

AB square + BC square = AC square

So ABC is a right angle triangle.

Hope it helps.

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Answer 2

Answer:

Step-by-step explanation:

Pythagorean theorem says, that for any right triangle with length of sides "a", "b" and "c" :  a² + b² = c²

If AB² + BC² = AC² , then triangle ABC must be right angled.