Secondary School (English Medium) (5 to 8) Class 7 - CBSE Question Bank Solutions for Mathematics

What is the type of other angle of a linear pair if one of its angle is acute?

What is the type of other angle of a linear pair if one of its angles is obtuse?

What is the type of other angle of a linear pair if one of its angles is right?

Two angles are making a linear pair. If one of them is one-third of the other, find the angles.

Two triangles are congruent, if two angles and the side included between them in one of the triangles are equal to the two angles and the side included between them of the other triangle. This is known as the ______.

In the following figure, Δ ______ ≅ ΔPQR.

In the following figure, ∆ARO ≅ ∆ ______.

If hypotenuse and an acute angle of one right triangle are equal to the hypotenuse and an acute angle of another right triangle, then the triangles are congruent.

AAS congruence criterion is same as ASA congruence criterion.

In the following figure, AD ⊥ BC and AD is the bisector of angle BAC. Then, ∆ABD ≅ ∆ACD by RHS.

In the given pairs of triangles of figure, applying only ASA congruence criterion, determine which triangles are congruent. Also, write the congruent triangles in symbolic form.

In the given pairs of triangles of figure, applying only ASA congruence criterion, determine which triangles are congruent. Also, write the congruent triangles in symbolic form.

In the given pairs of triangles of figure, applying only ASA congruence criterion, determine which triangles are congruent. Also, write the congruent triangles in symbolic form.

In the given pairs of triangles of figure, applying only ASA congruence criterion, determine which triangles are congruent. Also, write the congruent triangles in symbolic form.

In the given pairs of triangles of figure, applying only ASA congruence criterion, determine which triangles are congruent. Also, write the congruent triangles in symbolic form.

In the given pairs of triangles of figure, applying only ASA congruence criterion, determine which triangles are congruent. Also, write the congruent triangles in symbolic form.

In the following figure, ∠1 = ∠2 and ∠3 = ∠4.

1. Is ∆ADC ≅ ∆ABC? Why ?
2. Show that AD = AB and CD = CB.

Observe the given figure and state the three pairs of equal parts in triangles ABC and DBC.

1. Is ∆ABC ≅ ∆DCB? Why?
2. Is AB = DC? Why?
3. Is AC = DB? Why?

Additive inverse of `2/3` is ______.

`(-3)/5 + 2/5` = ______.