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Construction of Triangle 3

A Δ ABC with ...

Question

A $Δ A B C$ with AB = 6 cm, $∠ A = 30^{\circ}$ and $∠ B = 60^{\circ}$ is given. Another $Δ A B^{'} C^{'}$ similar to $Δ A B C$ with AB' = 8 cm is constructed as shown below:

The reason why we don't construct a ray making an acute angle at A is

∠ A = 30^{\circ}

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Scale is not given.

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Length of AB' is given.

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Δ A B C

is a right-angled triangle.

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Solution

The correct option is C Length of AB' is given.
As the length AB' is given, we can construct B'C' by using corresponding angle. Hence, we don't require to construct a ray making an acute angle at A.

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Similar questions

Q. A

Δ A B C

with AB = 6 cm,

∠ A = 30^{\circ}

and

∠ B = 60^{\circ}

is given. Another

Δ A B^{'} C^{'}

similar to

Δ A B C

with AB' = 8 cm is constructed as shown below:

The reason why we don't construct a ray making an acute angle at A is

Q. A

Δ A B C

with AB = 6 cm,

∠ A = 30^{\circ}

and

∠ B = 60^{\circ}

is given. Another

Δ A B^{'} C^{'}

similar to

Δ A B C

with AB' = 8 cm is constructed as shown below:

The reason why we don't construct a ray making an acute angle at A is

Q. Construct a

Δ A B C

in which AB = 6 cm,

∠ A = 30^{\circ} a n d ∠ B = 60^{\circ} .

Construct another

Δ A B^{'} C^{'} similar to Δ A B C

with base AB' = 8 cm.

Q. A triangle ABC with AB = 6 cm,

∠ A = 30^{\circ}

and

∠ B = 60^{\circ}

is given. The image of construction of

Δ A B^{'} C^{'}

similar to

Δ A B C

with base

A B^{'} = 8 c m

is given below.

The postulate used for drawing B'C' || BC is:

Q. Construct a ∆ABC in which AB = 6 cm,

∠

A = 30º and

∠

B = 60º. Construct another ∆AB'C' similar to ∆ABC with base
AB' = 8 cm. [CBSE 2015]

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A ΔABC with AB = 6 cm, ∠A=30∘ and ∠B=60∘ is given. Another ΔAB′C′ similar to ΔABC with AB' = 8 cm is constructed as shown below: The reason why we don't construct a ray making an acute angle at A is

The correct option is C Length of AB' is given.As the length AB' is given, we can construct B'C' by using corresponding angle. Hence, we don't require to construct a ray making an acute angle at A.

A $Δ A B C$ with AB = 6 cm, $∠ A = 30^{\circ}$ and $∠ B = 60^{\circ}$ is given. Another $Δ A B^{'} C^{'}$ similar to $Δ A B C$ with AB' = 8 cm is constructed as shown below:

The reason why we don't construct a ray making an acute angle at A is

The correct option is C Length of AB' is given.
As the length AB' is given, we can construct B'C' by using corresponding angle. Hence, we don't require to construct a ray making an acute angle at A.