# Isosceles triangle practice problems - last page

See also practice problems: triangle, angle, right triangle, similarity of triangles, The right triangle altitude theorem, Thales' theorem.We found these online calculators:

**triangle calculator**.#### Number of problems found: 171

- Trapezoid 65644

In an isosceles trapezoid, the base ratio a / c = 9/7, arm b = 10 cm, height v = 8 cm. Calculate the area of the trapezoid in cm². - Isosceles 65784

An isosceles triangle has an angle of 78°20' at the base. Calculate the size of the angle between the arms. - Right-angled 66364

From a rectangular board with dimensions of 2 m and 3 m, we cut isosceles right-angled triangles at the corners with an overhang of 40 cm. Calculate the ratio of the areas of the rest of the board to its total original area. - Constructed 67424

There are six lines 3 cm, 4 cm, 5 cm, 7 cm, 8 cm, and 9 cm long, two of each length. How many isosceles triangles can be constructed from them? List all options. - Consider 3

Consider the isosceles trapezoid PQRS. The bases are |PQ|=120 mm, |RS|=62 mm and the arm s=48 mm. Find the height of the trapezoid, diagonal length and the area of the trapezoid. - Isosceles 71154

Calculate all interior angles in the isosceles triangle ABC if we know that BC is the base, and we also know: | ∢BAC | = α; | CABCA | = 4α - An isosceles

An isosceles trapezoid has base angles of 50° each, and its bases are 20 cm and 30 cm. Compute its area. - Calculate 71764

The angle at the base of an isosceles triangle is 18 ° larger than the angle at the central vertex. Calculate the size of the interior angles. - Isosceles right triangle

If the square of the hypotenuse of an isosceles right triangle is 128 cm^{2}, find the length of each side. - 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. - Isosceles triangle

Find the area of an isosceles triangle whose leg is twice the base, b=1 - Isosceles triangle

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

In an isosceles triangle ABC is |AC| = |BC| = 13 and |AB| = 10. Calculate the radius of the inscribed (r) and described (R) circle. - 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. - Circumscribed 29561

Construct an isosceles triangle if a given circle circumscribed with a radius r = 2.6 cm is given. - Isosceles triangle

Calculate the area of an isosceles triangle, the base measuring 16 cm and the arms 10 cm. - QuizQ

An isosceles triangle has two sides of length 7 km and 39 km. How long is a third side? - Length IT

Find the length (circumference) of an isosceles trapezoid in which the length of the bases a,c, and the height h are given: a = 8 cm c = 2 cm h = 4 cm. - Iso triangle

An isosceles triangle with a base of 8 cm. Its circumference is 28 cm. Calculate the height of the triangle. - Isosceles 5856

How many isosceles triangles form in a square when we mark all diagonals?

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