Suppose we have two angles $∠ P Q R$ and $∠ P R S$ such that their sum is $90^{0}$ then they are called ____________ pair of angles.

Complementary

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Supplementary

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Adjacent

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None of the above

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Solution

The correct option is A Complementary
If sum of two angles is $90^{\circ}$ then the angles are called complementary angles.
So option $A$ is correct.

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Similar questions

Suppose that we have two triangles ∆ ABC and∆PQR with their corresponding sides are AB and PQ, BC and QR, AC and PR. After we proved triangle ABC congruent to triangle PQR by SSS test then is it compulsory to write triangle ABC congruent to triangle PQR in a particular way that is their names must be in correspondence with each other.

The sides PQ, PR of $Δ P Q R$ are equal, and S, T are points on PR, PQ such that $∠ P S Q$ and $∠ P T R$ are right angles. Hence, $Δ P T R ≅ Δ P S Q$

State whether the above statement is true or false.

Fill in the blanks:

(i) If two angles are complementary, then the sum of their measures is _______.

(ii) If two angles are supplementary, then the sum of their measures is _______.

(iii) Two angles forming a linear pair are _______.

(iv) If two adjacent angles are supplementary, they form a _______.

(v) If two lines intersect at a point, then the vertically opposite angles are always _______.

(vi) If two lines intersect at a point, and if one pair of vertically opposite angles are acute angles, then the other pair of vertically opposite angles are _______.

Q. If the sum of the measures of two angles is 90 degrees, then what are they called?

Q. The sides PQ, PR of triangle PQR are equal, and S,T are points on PR,PQ such that

∠ P S Q a n d ∠ P T R

are right angles.
And hence, the triangles PSR and PSQ are congruent
If the above statement is true then mention answer as 1, else mention 0 if false

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Suppose we have two angles ∠PQR and ∠PRS such that their sum is 900 then they are called ____________ pair of angles.

The correct option is A ComplementaryIf sum of two angles is 90∘ then the angles are called complementary angles.So option A is correct.

Suppose we have two angles $∠ P Q R$ and $∠ P R S$ such that their sum is $90^{0}$ then they are called ____________ pair of angles.

The correct option is A Complementary
If sum of two angles is $90^{\circ}$ then the angles are called complementary angles.
So option $A$ is correct.