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Byju's Answer
Standard IX
Mathematics
Representation of a Point on Cartesian Plane
Find the area...
Question
Find the area of a triangle whose vertices are given as (−𝟏, 𝟏), (𝟐, 𝟏), and (𝟐, 𝟓).
A
5 sq. units
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B
8 sq. units
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C
3 sq. units
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D
6 sq. units
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Solution
The correct option is
D
6 sq. units
Answer:
Option C is the correct answer.
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Similar questions
Q.
Choose the correct option:
Assertion(A):
The area of a right-angled triangle whose hypotenuse is 𝟓√𝟐 𝒄𝒎 and base length 𝟓 𝒄𝒎 is 𝟏𝟐.𝟓
c
m
2
.
Reason(R):
Area of a right-angled triangle =
1
2
×𝑩𝒂𝒔𝒆 ×𝑯𝒆𝒊𝒈𝒉𝒕
Q.
If
(
4
9
x
2
−
b
)
=
(
7
x
+
1
/
2
)
(
7
x
−
1
/
2
)
, then the value of 𝒃 is:
Q.
Find the relation between 𝒙 and 𝒚 if points (𝟐, 𝟏), (𝒙, 𝒚), and (𝟕, 𝟓) are collinear.
Q.
If 𝜶 and 𝜷 are the zeroes of the polynomial 𝒇(𝒙) =
6
x
2
+
x
−
2
, find the value of
1
α
+
1
β
.
Q.
If
√
x
+
1
√
x
=
3
, the value of
x
2
+
1
x
2
is _____.
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