# PreCalc

posted by .

An isosceles triangle is a triangle with two sides that are the same length. Find the measure of the two equal angles to the nearest degree in a triangle that has sides of length 5ft., 5ft., and 6ft.

• PreCalc -

In your isosceles triangle create a right-angled triangle with a base of 3 and hypotenuse of 5

then cos(theta) = 3/5
theta = 53.13ยบ

## Similar Questions

1. ### isosceles triangle

An isosceles triangle is a triangle that has two equal sides. Find AB, BC and AC. Determine if the triangle is isoseles or not based on the lengths of the three sides. can someone show me how to solve?
2. ### trig

the length of the base of an isosceles triangle is 30.42 inches. each base is 26.54 degrees. find the length of the two equal sides of the triangle to the nearest hundredths. i get 15.19. is that right?
3. ### Algebra

Identify the triangle PQR as isosceles ( two sides equal length) equilateral (three sides of equal length) a right triangle, or a scalene triangle (three sides of different length)
4. ### geometry

find the value of x in each triangle: triangle x has 1 angle at 53 degree for value x i got: 63.5 degree is that correct?
5. ### geometry

find the value of x in each triangle: triangle x has 1 angle at 53 degree for value x i got: 63.5 degree is that correct?
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. ### algebra

As isosceles triangle has two sides of equal length. If the third side of an isosceles triangle is five inches longer than one of the equal sides, and the perimeter is 26 inches, find the length of each side.
8. ### math plz check ;-;

A triangle has sides of lengths 5 cm, 5 cm, and square root 47cm. Which of the following statements is true?
9. ### math plz check ;-; sorry

A triangle has sides of lengths 5 cm, 5 cm, and square root 47cm. Which of the following statements is true?
10. ### Math

Length of equal sides of an isosceles triangle is 4cm less than twice the length of third side.find length of equal sides if perimeter of the triangle is 57 cm

More Similar Questions