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If it's a right angle triangle then by using Pythagoras' theorem the third side is 17 cm

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14y ago

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A right-angled triangle has a hypotenuse of 25cm and one side of 15cm what is the length of the third side?

The length of the third side is 20 cm


What is the missing length of the right triangle which measures 15 cm by 13 cm?

We don't know whether the 15cm happens to be the hypotenuse (longest side) of the right triangle. It makes a big difference. -- If the 15cm is the longest side, then the third side is 7.483 cm. (rounded) -- If the 13cm and the 15cm are the "legs", then the hypotenuse is 19.849 cm. (rounded)


How many triangles have the perimeter of 15cm?

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.


Two sides of a triangle are 8 and 13 which could be the measurement of the third side?

6


Can you construct a triangle that has side lengths 11cm 12cm and 15cm?

Yes


How do you use sine cosine and tangent?

They are used to find the angle or side measurement of a right triangle. For example, if 2 sides of a right triangle have known values and an angle has a known measurement, you can find the third side by using sine, cosine or tangent.


What is the measurement of an equalateral triangle?

An equalateral triangle doesn't have a measurement because each side just has to be the same. It can be an measurement. The triangle's degree's is always 360.


If an isosceles triangle is a triangle with 2 congruent equal sides if the third side is three times the length of the congruent sides and the perimeter is 75cm find the length of all three sides?

Let x be the length of one of the congruent sides, then the three sides are x, x, 3x. Perimeter = x + x + 3x = 5x = 75cm => x = 15cm Thus the three sides are 15cm, 15cm, 45cm.


What is the length ofBC if the. perimeter of the traiangle is 46 cm and side AB is 16m?

If it is an isosceles triangle then side BC is 15cm and side AC is 15m


If I have the measurement of 2 sides of a triangle and I need the measurement of the 3rd side with a 90 degree angle?

The 3rd side of the right angle triangle can be found by using Pythagoras' theorem.


An isosceles triangle has two equal sides that are 15cm long and two equal angles of 62 degrees calculate the length of the third side?

first find the unknown angle, 180o - (62o+62o) = 56o next use the law of sines to find the other side: sin 62o / 15cm = sin 56o / X Solving for x, X = 14.08 cm


What is the length of the third side of an equilateral triangle have?

The length of the third side of an equilateral triangle is the same as the lengths of both of the other two sides.