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Byju's Answer
Standard VII
Mathematics
Angles
If ABC≅ RQP...
Question
If
△
A
B
C
≅
△
R
Q
P
,
∠
A
=
80
∘
,
∠
B
=
60
∘
, then the value of
∠
P
is
A
60
∘
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B
50
∘
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C
40
∘
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D
80
∘
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Solution
The correct option is
D
40
∘
If two triangles are equal then their corresponding angle are also equal
∴
∠
A
=
∠
R
,
∠
B
=
∠
Q
and
∠
C
=
∠
P
In
△
A
B
C
∠
A
+
∠
B
+
∠
C
=
180
∘
80
∘
+
60
∘
+
∠
C
=
180
∘
∠
C
=
180
∘
−
140
∘
=
40
∘
∴
∠
P
=
40
∘
Suggest Corrections
1
Similar questions
Q.
In triangle ABC, ∠A=60∘,∠B=40∘,∠A=60∘,∠B=40∘, and ∠C=80∘.∠C=80∘.
If P is the center of the circumcircle of the triangle ABC with radius unity, then the radius of the circumcircle of triangle
B
P
C
is?
Q.
In
∆ABC, side
BC is produced to D. If
∠ABC = 40° and ∠ACD = 120°, then
∠
A = ?
(a) 60
°
(b) 40
°
(c) 80
°
(d) 50
°