Angled triangle ABC are x-1, x

Thread starter VICKZZA
Start date Jan 20, 2012
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Triangle

In summary, the Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the other two sides. To find the length of side AB, you can use the Pythagorean theorem by plugging in the values for the other two sides and solving for AB. The perimeter of triangle ABC is the sum of the lengths of all three sides, and the area can be found using the formula A = (1/2)bh. An angled triangle cannot have three equal sides.

Jan 20, 2012

VICKZZA

Homework Statement

The length of the sides of the acute angled triangle ABC are x-1, x
and x+1. BD is perpendicular to AC. Then CD-DA equals?

Homework Equations

cosine law

The Attempt at a Solution

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Jan 20, 2012

HallsofIvy

Science Advisor

Homework Helper

Apparently your "Attempt at a solution" did not come get posted.

What is the Pythagorean theorem?

The Pythagorean theorem 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.

How do I find the length of side AB?

To find the length of side AB, you can use the Pythagorean theorem by plugging in the values for the other two sides (x-1 and x) and solving for AB.

What is the perimeter of triangle ABC?

The perimeter of triangle ABC is the sum of the lengths of all three sides. To find the perimeter, simply add the lengths of sides AB, BC, and AC.

What is the area of triangle ABC?

The area of a triangle can be found by using the formula A = (1/2)bh, where b is the length of the base and h is the height. In this case, the base would be side AB and the height can be found by using the Pythagorean theorem to find the length of the altitude from angle C to side AB.

Can an angled triangle have three equal sides?

No, an angled triangle (also known as a scalene triangle) cannot have three equal sides. By definition, an angled triangle has three different side lengths and three different angles.