Triangle practice problems - page 10 of 126
Number of problems found: 2520
- Triangle angle
In a right triangle, one acute angle is 20° smaller than the other. Determine the size of the interior angles in the triangle. - The second
The second angle of a triangle is the same size as the first angle. The third angle is 12 degrees larger than the first angle. How large are the angles? - N points on the side
An equilateral triangle A, B, and C on each of its inner sides lies N=13 points. Find the number of all triangles whose vertices lie at given points on different sides. - Triangle Angles Type
In a triangle, the first angle is half the second angle, and the third angle is the third of the first angle. How big are the angles in a triangle, and what is the type of triangle? - Calculate
Calculate the area of the ABE triangle AB = 38 mm and height E = 42 mm Ps: please try a quick calculation - Inequality triangle
The heel of height from the vertex C in the triangle ABC divides the side AB in the ratio 1:2. Prove that in the usual notation of the lengths of the sides of the triangle ABC, the inequality 3 | a-b | < c. - Triangle sides
The perimeter of the isosceles triangle is 32 cm. The base is 2 cm longer than the shoulder. Calculate the sides of the triangle. - Angles in triangle
Calculate the angle alpha in the triangle if the beta is 61 degrees and 98 gamma degrees. - Descent of road
A road sign shows a gradient of 10.9%. Calculate the angle of inclination of the slope. - Greatest angle
Calculate the greatest triangle angle with sides 124, 323, 302. - One angle 2
One angle of a triangle measures 50°. The other two angles are in a ratio of 5:8. What are the measures of those two angles? - Triangle angle magnitude
A triangle has interior angles of 58º 20' and 83º 40'. Calculate the magnitude of the third in degrees of angle. - Bisector 2
ABC is an isosceles triangle. While AB=AC, AX is the bisector of the angle ∢BAC meeting side BC at X. Prove that X is the midpoint of BC. - Two angles 2
Two angles of a triangle have the same measure, and the third is 45 degrees greater than each of the other two. Find the measure of the largest angle. - Triangle angle ratio
The sizes of the interior angles of the triangle are in a successive ratio of 6:4:5 are these angles big? - Triangle creation ways
How many different triangles with vertices formed by points A, B, C, D, E, and F can we create? - The sides 3
The sides of an equilateral triangle are 9.4 cm, correct to the nearest decimal place. Work out the upper bound of the side of this triangle. - Triangle perpendicular
The right triangle has an area of 2304 cm2, and one perpendicular is 8 cm long. Express and calculate the second perpendicular. - Triangle side ratio
A triangle with sides a, b, and c whose perimeter is 26 cm is true: ratio a:b is 4:3, and ratio b:c is 1:2. Find the lengths of the sides of this triangle. - Triangle angle ratio
Calculate the magnitudes of the interior angles of a triangle if you know that these are in a 2:3:5 ratio.
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