# Practice problems of the triangle

A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. The sum of the measures of the interior angles of a triangle is always 180 degrees. An exterior angle of a triangle is an angle that is a linear pair (and hence supplementary) to an interior angle. The best known area formula is T = a*h /2 where a is the length of the side of the triangle, and h is the height or altitude of the triangle.#### Number of problems found: 2188

- Laws

From which law directly follows the validity of Pythagoras' theorem in the right triangle? ... - ABS CN

Calculate the absolute value of the complex number -15-29i. - Center traverse

Does the middle traverse indeed bisect the triangle? - A triangle 3

A triangle has a base of 5 5/6 feet and a height of 7 2/5 feet. Find the area of the triangle as a mixed number. - Area of a triangle

Find the area of a triangle with a base of 7 mm and a height of 10 mm. - Triangle

Can an equilateral triangle have a right angle? - The angles

The angles in the triangle are in the ratio 12:15:9. Find the angles. - Midpoints

Triangle whose sides are midpoints of sides of triangle ABC has a perimeter 64. How long is the perimeter of the triangle ABC? - The perimeter

The perimeter of the triangle is 24, and the sides are integers and form an arithmetic sequence. Specify the side sizes of this triangle. - Equilateral triangle

Find the area of an equilateral triangle with a side of 15 cm. - Euclid2

The ABC right triangle with a right angle at C is side a=29 and height v=17. Calculate the perimeter of the triangle. - Identical 32703

How many identical triangles do the middle bars divide the triangle ▲? - Angles - triangle

Find the measure of the angles of the triangle ABC if: the measure of angle A is the measure of angle C and the measure of angle B =½ of the measure of angle C. - A triangle 8

A triangle has a base of 9.2 feet and a height of 4.8 feet. What is the area of the triangle? - An isosceles 2

An isosceles triangular frame has a measure of 72 meters on its legs and 18 meters on its base. Find the perimeter of the frame. - Third interior angle

Find the third interior angle of the triangle ABC where: α = 48°, γ = 65°. - Scalene triangle

Solve the triangle: A = 50°, b = 13, c = 6 - Angle

Draw angle |∠ ABC| = 30° and build its axis. What angle is between the axis angle and arm of angle? - Isosceles triangle

Calculate the perimeter of the isosceles triangle with arm length 73 cm and base length of 48 cm. - Calculate 4013

In a triangle, one internal angle measures 36 degrees. The second angle is twice the third angle. Calculate unknown angles.

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