Well, honey, that's no ordinary triangle, that's an isosceles triangle. Two sides are the same length, so it's like those twins you can't tell apart. Just make sure to measure those angles too, we don't want any surprises popping up like a bad reality show.
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The triangle with sides measuring 4cm, 5cm, and 4cm is classified as an isosceles triangle. An isosceles triangle has two sides that are equal in length. In this case, the two sides measuring 4cm each make it an isosceles triangle. Additionally, the angles opposite the equal sides are also equal in an isosceles triangle.
A scalene triangle.
A scalene triangle is a triangle that does not have a right angle in it (i.e. not a right angled triangle) and does not have two (or three) sides with the same length (i.e. not an isosceles triangle or an equilateral triangle). An example is a triangle with sides of length 4cm, 5cm and 6cm.
5cm
Because the sum of the squares of the smaller sides equals the square of the largest side: 32+42 = 25 and 52 = 25
It will be a right angle triangle with a base of 3cm, a height of 4cm and a hypotenuse of 5cm
A scalene triangle.
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The triangle with sides measuring 3cm, 4cm, and 5cm is a right triangle. This can be determined by applying the Pythagorean theorem, which states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides. In this case, 3^2 + 4^2 = 5^2, confirming that the triangle is a right triangle.
A scalene triangle is a triangle that does not have a right angle in it (i.e. not a right angled triangle) and does not have two (or three) sides with the same length (i.e. not an isosceles triangle or an equilateral triangle). An example is a triangle with sides of length 4cm, 5cm and 6cm.
5cm
5cm
Because the sum of the squares of the smaller sides equals the square of the largest side: 32+42 = 25 and 52 = 25
5cm, 5cm, and 5cm could represent the lengths of the sides of an equilateral triangle, or might indicate the length, width, and height of a cube.
To determine the number of triangles with a perimeter of 15cm, we need to consider the possible side lengths that can form a triangle. The triangle inequality theorem states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side. With a perimeter of 15cm, the possible side lengths could be (5cm, 5cm, 5cm) for an equilateral triangle, (6cm, 5cm, 4cm) for an isosceles triangle, or (7cm, 5cm, 3cm) for a scalene triangle. Therefore, there are 3 possible triangles that can have a perimeter of 15cm.
It will be a right angle triangle with a base of 3cm, a height of 4cm and a hypotenuse of 5cm
Using the cosine rule the biggest angle is: 82.81924422 degrees Using radius formula for circumcircle of a triangle the radius is: 3.023715784 cm
Area = 0.5*4*5 = 10 square cm