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Maths Fill In The Blanks[1 Marks ]

Triangle And Its Angles · Gujarat Board (GSEB) STD 9 (GSEB - English Medium). 20 questions.

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Fill In The Blanks[1 Marks ]

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20 questions · self-marked practice — reveal the answer and mark yourself.

Question 11 Mark
Fill in the blanks to make the following statements true: An exterior angle of a triangle is equal to the two ______ opposite angles.
Answer
An exterior angle of a triangle is equal to the two Interior opposite angles
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Question 21 Mark
Fill in the blanks to make the following statements true: Sum of the angles of a triangle is _______
Answer
Sum of the angles of a triangle is $180^\circ .$
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Question 31 Mark
Fill in the blanks to make the following statements true: A triangles cannot have more than ______ obtuse angles.
Answer
A triangles cannot have more than obtuse One angles.
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Question 41 Mark
Fill in the blanks to make the following statements true: A triangle cannot have more than ______ right angles.
Answer
A triangle cannot have more than One right angles.
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Question 51 Mark
Fill in the blanks to make the following statements true: An exterior angle of a triangle is always _______ than either of the interior opposite angles.
Answer
An exterior angle of a triangle is always Greater than either of the interior opposite angles.
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Question 61 Mark
In $\triangle A B C$ and $\triangle P Q R$, if $\angle A=\angle Q, \angle B=\angle R$ and AB = QR, then these triangles are congruent by ____________ criterion.
Answer
ASA
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Question 71 Mark
In $\triangle A B C$ and $\triangle P Q R$, if $\angle A=\angle Q, \angle B=\angle R$ and PR = AC, then two triangles are congruent by ____________ criterion.
Answer
AAS
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Question 101 Mark
If AD is a median of $\triangle A B C$, then the perimeter of $\triangle A B C$ cannot be less than or equal to ____________ .
Answer
2AD
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Question 111 Mark
Two sides of a triangle are of lengths 5 cm and 1.5 cm. The length of the third side of the triangle lies between ____________ and ____________ .
Answer
3.5, 6.5
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Question 121 Mark
D is a point on side $B C$ of a $\triangle A B C$ such that $A D$ bisects $\angle B A C$. Then ____________ .
Answer
BA>BD
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Question 141 Mark
If in $\triangle P Q R, \angle P=70^{\circ}$ and $\angle R=30^{\circ}$, then the longest side of $\triangle P Q R$ is ____________ .
Answer
PR
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Question 151 Mark
In $\triangle A B C, A B=B C$ and $\angle B=80^{\circ}$. Then, $\angle A$ = ____________ .
Answer
$50^{\circ}$
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Question 161 Mark
In $\triangle A B C, A B=A C$ and $\angle B=50^{\circ}$. Then, $\angle C$ = ____________ .
Answer
$50^{\circ}$
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Question 171 Mark
In $\triangle P Q R, \angle P=\angle R, Q R=4 cm$ and $P R=5 cm$. Then $P Q$ = ____________ .
Answer
4 cm
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Question 181 Mark
In $\triangle A B C$ and $P Q R, A B=A C, \angle C=\angle P$ and $\angle B=\angle Q$. The two triangles are ____________ but not ____________ .
Answer
isosceles, congruent
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Question 191 Mark
In triangles ABC and DEF, AB = FD and $\angle A=\angle D$. The two triangles will be congruent by SAS axiom, if ____________ .
Answer
AC = DE
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Question 201 Mark
IF AB = QR BC = PR and CA = PQ then triangle ____________ $\cong$ triangle ____________ .
Answer
$\triangle C B A, \triangle P R Q$
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