Help
Contact
For teachers and institutes
Search courses, problems, tests…
A
A
>_
StemPy Lab
Courses ▾
Problems ▾
Practice ▾
Mock Tests
Classes
Community ▾
A
A
A four-sided tile has a round hole whose edge touches… | StemPy Lab
Quizzes
/
A four-sided tile has a round hole whose edge touches every side. Three sides are AB = 6 cm, BC = 9 cm and CD = 8 cm. What is the fourth side DA?
Mathematics
Medium
High School (9–10)
General
Geometry › Circles
Board Exam
SAT
Created by
StemPy Lab
A four-sided tile has a round hole whose edge touches every side. Three sides are
A
B
=
6
cm
AB = 6\ \text{cm}
A
B
=
6
cm
,
B
C
=
9
cm
BC = 9\ \text{cm}
B
C
=
9
cm
and
C
D
=
8
cm
CD = 8\ \text{cm}
C
D
=
8
cm
. What is the fourth side DA?
5
cm
5\ \text{cm}
5
cm
7
cm
7\ \text{cm}
7
cm
11
cm
11\ \text{cm}
11
cm
23
cm
23\ \text{cm}
23
cm
Check Answer
Log in to save
Tag someone
⚑ Report
← All Quizzes
← The sides of a right-angled plate are 20 cm, 21 cm and 29 cm. The largest circle that fits inside it touches all three edges. What is its radius?
A large disc of radius 25 cm has a smaller disc of radius 20 cm stuck at its middle. A straight scratch across the large disc just touches the small disc. How long is the scratch? →
More on
Geometry › Circles
Discussion (0)
Log in
to join the discussion.
Loading…
Problems on this topic
ABC is an equilateral triangle with side 6, and its circumcircle has radius R…
Hard
Two circles have the same centre O, with radii 17 cm and 8 cm…
Hard
A four-sided figure ABCD is drawn round a circle, so that all four sides touch it…
Medium
A right triangle has legs 15 cm and 20 cm…
Medium
All problems on this topic →