CBSE Class 7 Mathematics Geometric Twins MCQs Set I

Question. If AAS condition is satisfied, by calculating the third angle, the condition can be converted into which other guaranteed condition?
(a) SSS
(b) RHS
(c) ASA
(d) SAS

Answer: C

Question. The AAS condition always guarantees congruence because finding the third angle converts it into the sufficient
(a) SAS rule
(b) ASA rule
(c) SSS rule
(d) RHS rule

Answer: B

Question. In a right-angled triangle, the hypotenuse is the side opposite to the
(a) Acute angle
(b) Smallest angle
(c) Right angle
(d) Largest angle

Answer: C

Question. If we only measure the three angles of a triangle (like 30°, 70°, 80°), we can draw many triangles that have the same shape but different
(a) Angles
(b) Size
(c) Perimeter
(d) Vertices

Answer: B

Question. If two triangles have the same set of three angles, they
(a) Must be congruent
(b) Need not be congruent
(c) Must be isosceles
(d) Must be equilateral

Answer: B

Question. To create an exact replica of a symbol on a signboard, we need measurements like arm lengths and the angle
(a) Adjacent to the arms
(b) Opposite to the arms
(c) Included between the arms
(d) At the top vertex

Answer: C

Question. If two symbols have same arm lengths but different included angles, they are
(a) Congruent
(b) Always non-congruent
(c) Always equilateral
(d) Always rectangles

Answer: B

Question. If triangle ABC is isosceles with AB = AC, the angles opposite to the equal sides are
(a) Angle A and Angle B
(b) Angle B and Angle C
(c) Angle A and Angle C
(d) Angle B and Angle A

Answer: B

Question. In an isosceles triangle, the angles opposite to equal sides are
(a) Always 90 degrees
(b) Always 60 degrees
(c) Equal
(d) Supplementary

Answer: C

Question. If triangle ABC is isosceles and AB = AC, and angle A = 80 degrees, then the sum of angle B and angle C is
(a) 80 degrees
(b) 100 degrees
(c) 180 degrees
(d) 90 degrees

Answer: B

Question. If two triangles satisfy the ASA condition, it means two angles and which side are equal?
(a) Non-included side
(b) Hypotenuse
(c) Included side
(d) Longest side

Answer: C

Question. The ASA (Angle Side Angle) condition is sufficient for congruence, this is
(a) Correct
(b) Incorrect
(c) True only for small angles
(d) True only for right angles

Answer: A

Question. In rectangle ABCD, triangle ABD and triangle CDB satisfy SSS condition because AB = CD, AD = CB, and BD is a
(a) Diagonal
(b) Transversal
(c) Common side
(d) Altitude

Answer: C

Question. If two triangles have the same side lengths, the SSS condition is satisfied, so the two triangles are
(a) Parallel
(b) Similar
(c) Congruent
(d) Perpendicular

Answer: C

Question. To check if two rectangles are congruent, we must check if they have same
(a) Area only
(b) Perimeter only
(c) Length and breadth
(d) Diagonal length

Answer: C

Question. For two triangles to be congruent, measuring the sidelengths is sufficient or not sufficient?
(a) Not sufficient
(b) Sufficient
(c) Depends on the angles
(d) Depends on construction

Answer: B

Question. If two triangles have the same sidelengths, this condition for congruence is called
(a) ASA
(b) SAS
(c) SSS
(d) RHS

Answer: C

Question. The symbol on a signboard needs exact replica. One way to do this is to trace the outline, but this is difficult for
(a) Small symbols
(b) Simple symbols
(c) Big symbols
(d) Square symbols

Answer: C

Question. To create an exact replica of the figure on the signboard, we must take some
(a) Pictures
(b) Measurements
(c) Tracing paper
(d) Rubber cutouts

Answer: B

Question. If we only take arm lengths AB and BC, is it sufficient to exactly recreate the figure?
(a) Yes, always
(b) No, never
(c) Sometimes yes
(d) Cannot tell

Answer: B