You are here:

Advanced Math/precal- trig

Advertisement

Expert: Sherman D. - 5/17/2008


Question
a college football pennant is in the shape of an isosceles traingle. The base is 20 long . the sides meet at an angle of 35 degrees. how long are the sides?

Answer
if the sides meet at 35, then the other 2 angles can be found like this.

35 + 2x = 180
2x = 145
x = 72°30'

now just use

20/sin(35) = y/sin(72°30)

y = 20sin(72°30)/sin(35°)
y = 33.2551 or about 33

so the other 2 sides are about 33 long

Advanced Math

All Answers

Answers by Expert:

Ask Experts

Volunteer

Sherman D.

Expertise

I can answer questions dealing in mathematics of all kinds except for Physics and Calculus, but i can answer questions in Pre-Calculus and Chemistry. I can also answer questions in Recipes of all kinds. I can find games cheats/walkthroughs, but i can`t find a specific game online or offline. I can also do history and recipes for alcoholic beverages.

Experience

Mathematics, Recipes, History, and Games.

Education/Credentials
High School graduated. I graduated with honors, and i was in Beta Club for a year and a half.

Awards and Honors
Principle's list and A and B honor roll in high school only.

©2012 About.com, a part of The New York Times Company. All rights reserved.