# Geometry

posted by .

Find the length of the altitude of an isosceles triangle if one side has a length of 20 ft and a base of 14 ft?

• Geometry -

what is sqrt (20^2-7^2)

• Geometry -

(20^2-7^2) = 351
sqrt of 351 = 18.7

• Geometry -

18.3

## Similar Questions

1. ### geometry

Find the length of the altitude to the base of an isosceles triangle if the length of one leg is 17 and the base is 16.
2. ### geometry

The perimeter of right triangle RST is equal to the perimeter of isosceles triangle XYZ. The lengths of the legs of the right triangle are 6 and 8. If the length of each side of the isosceles triangle is an integer. what is the greatest …
3. ### Math (Geometry)

The perimeter of right triangle ABC is equal to the perimeter of isosceles triangle DEF. The lengths of the legs of the right triangle are 6 and 8. If the length of each side of the isosceles triangle is an integer, what is the greatest …
4. ### geometry

Each base of an isosceles triangle measures 42 degrees, 30'. The base is 14.6 meters long. a. Find the length of a leg of the triangle b. Find the altitude of the triangle c. What is the area of the triangle?
5. ### Geometry

The length of one side of an isosceles triangle is two times the base b. This length is equal to (8b - 12),in. What is the value of b?
6. ### algebra

an isosceles triangle is one in which two sides are the same length. The perimeter of an isosceles triangle is 36cm if the length of the congruent sides is 4 times the length of the third side, find the dimentions of the triangle
7. ### Geometry

1. The perimeter of an isosceles triangle is 50cm and the length of the altitude to the base is 5cm. Find the length of the base. 2. In quadrilateral QRST: TQ=8cm; (angle)R=60; (angle)T=90; QR=RS; ST=8cm. Find the exact length of the …
8. ### math

a rectangle with side of 6 cm and 5 cm has the same area as an isosceles triangle with base length 12 cm find the altitude to the base of the triangle and the sides of the triangle
9. ### geometrey

the base of an isosceles triangle is 5m less than 4 times the length of a side. The perimeter is 67m. Find the length of each side and the base. My answers for the equal side lengths are 24 and the base is 19. What is the proper way …
10. ### math

In an isosceles triangle, the length of one of the equal side is four less than triple the length of the base. Find length of the base of the triangle if the perimeter of triangle is 55 cm.

More Similar Questions