The second angle of a triangle is 45° more than the smallest angle. The third angle is three times
the smallest. How many degrees are there in each angle?
Choose the correct choice from the following choices:
A) L=6/W=18
B) L=18/W=6
C) L=7/W=19
D) L=19/W=7
E) L=10/W=20
We are looking for three angles.   ! 1 - x   ! 2 - x + 45   ! 3 - 3x   You would not be able to solve this problem unless you knew that the sum of the interior angles   of a triangle is 180°.   ! 1 + ! 2 + ! 3 = 180°   x + x + 45 + 3x = 180°   5x + 45 = 180°   5x = 135°   x = 27°   That means the first angle is 27°, the second angle is 27 + 45 or 72°, and the third angle is 3 times   27 or 81°.   Try this on your own. The length of a rectangle is three times the width and its perimeter is 48 ft.   Find the length and width. The answers are length is 18 and the width is 6 ft.   correct answer L=18/W=6
<result>B</result>
The second angle of a triangle is 45° more than the smallest angle. The third angle is three times
the smallest. How many degrees are there in each angle?