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Triangles and are right-angled at and respectively
MATHEMATICS · Multi-part · CBSE · Mathematics · Triangles · Triangles
Problem
Triangles
△
P
Q
R
\triangle PQR
△
P
QR
and
△
S
T
U
\triangle STU
△
S
T
U
are right-angled at
Q
Q
Q
and
T
T
T
respectively. The following measurements are known:
P
Q
=
S
T
=
5
cm
PQ = ST = 5\,\text{cm}
P
Q
=
S
T
=
5
cm
,
P
R
=
S
U
=
13
cm
PR = SU = 13\,\text{cm}
P
R
=
S
U
=
13
cm
,
Q
R
=
12
cm
QR = 12\,\text{cm}
QR
=
12
cm
. (i) Prove that
△
P
Q
R
≅
△
S
T
U
\triangle PQR \cong \triangle STU
△
P
QR
≅
△
S
T
U
. (ii) Write the congruence criterion you have used. (iii) Find the length
T
U
TU
T
U
.
Related theory
Triangle Congruence
Triangle Congruence Criteria
Similarity
Additional congruence criteria (RHS)
Triangles
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