Help
Contact
For teachers and institutes
Search courses, problems, tests…
A
A
>_
StemPy Lab
Courses ▾
Problems ▾
Practice ▾
Mock Tests
Classes
Community ▾
A
A
In triangle ABC with AB = AC, the angle B is (2x + 15)°… | StemPy Lab
Quizzes
/
In triangle ABC with AB = AC, the angle B is (2x + 15)° and the angle C is (4x - 5)°. What is x?
Mathematics
Medium
High School (9–10)
General
Geometry › Triangles
Board Exam
SAT
Created by
StemPy Lab
In triangle
A
B
C
ABC
A
B
C
with
A
B
=
A
C
AB = AC
A
B
=
A
C
, the angle
B
B
B
is
(
2
x
+
15
)
∘
(2x + 15)^\circ
(
2
x
+
15
)
∘
and the angle
C
C
C
is
(
4
x
−
5
)
∘
(4x - 5)^\circ
(
4
x
−
5
)
∘
. What is
x
x
x
?
20
20
20
15
15
15
10
10
10
5
5
5
Check Answer
Log in to save
Tag someone
⚑ Report
← All Quizzes
← Triangles ABC and DEF have AB = DE and BC = EF. Which extra fact lets you prove them congruent by the SAS rule?
Which of these groups of three sticks, with lengths in centimetres, can be joined end to end into a triangle? →
More on
Geometry › Triangles
Discussion (0)
Log in
to join the discussion.
Loading…
All questions on this topic →
Problems on this topic
Triangle ABC has sides BC = 36, CA = 29 and AB = 25…
Advanced
A triangle ABC has sides a = BC, b = CA and c = AB…
Advanced
In triangle ABC the sides are AB = 20, BC = 21 and CA = 13…
Hard
A ladder 10 m long reaches 8 m up a wall…
Hard
All problems on this topic →