Triangle - practice for 13 year olds - page 3 of 56
Number of problems found: 1113
- Equilateral 37341
Calculate an equilateral triangle's perimeter and area with a side of 20 dm. - Iso triangle
An isosceles triangle with a base of 8 cm. Its circumference is 28 cm. Calculate the height of the triangle. - Type of triangle
How do I find the triangle type if the angle ratio is 2:3:7? - Triangle
Calculate the triangle's heights ABC if the triangle's sides are a=82, b=44, and c=53. - Triangle angles
The angles α, β, γ in triangle ABC are in the ratio 6:2:6. Calculate the size of angles. - The missing angle
Find the missing angle in the triangle and then name the triangle. Angles are: 95, 2x+15, x+3 - Complementary angles 2
Two complementary angles are (x+4) and (2x - 7). Find the value of x. - Supported 6172
The ladder is 1.4 m from the wall and touches 3 m high. How long is the ladder? - The angles 3
The angles in a triangle are in the ratio of 3:4:5. Work out the size of each angle. - Perimeter+mixed
Find the perimeter of a triangle whose sides are 5 1/2 cm, 7 3/5 cm, and 3 1/4 cm, respectively. - Equilateral triangle
Calculate the area of an equilateral triangle with a circumference of 72cm. - Equilateral triangle
The equilateral triangle has a 23 cm long side. Calculate its area. - Sides of triangle
Triangle has a circumference of 42 cm. Side a is two times shorter than side b, and side c is 2 cm longer than side a. Find the sizes of the sides of a triangle. - Broken tree
The tree is broken at 4 meters above the ground. The top of the tree touches the ground at a distance of 5 meters from the trunk. Calculate the original height of the tree. - Equilateral triangle v2
An equilateral triangle has a perimeter 36 dm. What is its area? - Triangle
Calculate the area of the right triangle ΔABC if one leg is long 14 and its opposite angle is 59°. - Calculate 68394
The sizes of the interior angles of the triangle are in the ratio of 3:4:5. Calculate these angles. - Perpendiculars 46081
Calculate the size of the hypotenuse in a triangle if its perpendiculars are 8 cm and 8.4 cm long. - Triangle 3187
In a general triangle, the aspect ratio a: b = 2:3. What is the ratio of heights va: vb? - The triangle
The triangle has sides 5 cm long, 5 cm, and 8 cm long. What is the area of the triangle?
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