Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Two angles measure
(
25
∘
−
a
)
(25^\circ - a)
(
2
5
∘
−
a
)
and
(
135
∘
+
2
a
)
(135^\circ + 2a)
(
13
5
∘
+
2
a
)
. If each one is the supplement of the other, then the value of
a
a
a
is (A)
45
∘
45^\circ
4
5
∘
(B)
35
∘
35^\circ
3
5
∘
(C)
20
∘
20^\circ
2
0
∘
(D)
65
∘
65^\circ
6
5
∘
Browse the problem library