7th Standard Syllabus & Materials
7th Standard
Tamilnadu 7th Standard Maths T2 - родроХро╡ро▓рпН роЪрпЖропро▓ро╛роХрпНроХроорпН Important Questions And Answers Study Material - QB365 Set B
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - родроХро╡ро▓рпН роЪрпЖропро▓ро╛роХрпНроХроорпН Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - ро╡роЯро┐ро╡ро┐ропро▓рпН Important Questions And Answers Study Material - QB365 Set C
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - ро╡роЯро┐ро╡ро┐ропро▓рпН Important Questions And Answers Study Material - QB365 Set B
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - ро╡роЯро┐ро╡ро┐ропро▓рпН Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - роЗропро▒рпНроХрогро┐родроорпН Important Questions And Answers Study Material - QB365 Set C
Published on: 03/09/2019
Geometry
Download Tamil Nadu 7th Standard Maths question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Maths Test1.
Construct a perpendicular bisector of the line segment AB = 6 cm.
2.
Two angles are in the ratio 3:2. If they are linear pair, find them.
3.
If \(\angle\)POQ = 23° and \(\angle\)POR = 62° then find \(\angle\)QOR
4.
There are six angles at a point. One of them is 45° and the other five angles are all equal. What is the measure of all the five angles?
5.
One angle of a linear pair is a right angle. What can you say about the other angle?
6.
Find the angle \(\angle\)JIL from the given figure.
7.
In the diagram, what is the value of angle x?
43°
44°
132°
134°
8.
Which of the following statements is ALWAYS TRUE when parallel lines are cut by a transversal
corresponding angles supplementary.
alternate interior angles supplementary.
alternate exterior angles supplementary.
interior angles on the same side of the transversal are supplementary.
9.
The measure of \(\angle\)BOC is
90°
180°
80°
100°
10.
The sum of all angles at a point is
360°
180°
90°
0°
11.
Adjacent angles have
no common interior, no common arm, no common vertex
one common vertex, one common arm, common interior
one common arm, one common vertex, no common interior
one common arm, no common vertex, no common interior
12.
Construct bisector of the ∠ABC with the measure 80°.
13.
(i) Which angles are corresponding angles to b°?
(ii) What is the measure of b°?
(iii) Which angles have the measure 68°?
(iv) Which angles have the measure 112°?
1.
Step 1: Draw a line. Mark two points A and B on it so that AB = 6 cm.
Step 2: Using compass with A as center and radius more than half of the length of AB, draw two arcs of same length, one above AB and one below AB.
Step 3: With the same radius and B as center draw two arcs to cut the arcs drawn in step 2. Mark the points of intersection of the arcs as C and D.
Step 4: Join C and D. CD will intersect AB. Mark the point of intersection as O CD is the required perpendicular bisector of AB.
Measure ∠AOC. Measure the length of AO and OB. What do you observe?
2.
Let the angles be 3x and 2x
Since they are linear pair of angles, their sum is 180°.
Therefore,
x = 36°
The angles are 3x = 3 x 36 = 108°
2x = 2 x 36 = 72°
3.
We know that \(\angle\)POR = \(\angle\)POQ + \(\angle\)QOR
62° = 23° + \(\angle\)QOR
Subtracting 23° on both sides
62° – 23° = 23° + \(\angle\)QOR – 23°
\(\angle\)QOR = 39°
4.
Let x be the all five angles. The sum of all six angles at a point is 360o.
x + x + x+ x + x + 45 = 360o
45o + 5x = 360°
5x = 360o - 45
5xo = 315°
xo = \(\frac{{315}^o}{15}\)
xo = 63°
∴ Measure of all 5 equal angles = 63°.
5.
If one angle of a linear pair is a right angle then the other angle is also a right angle.
Because the sum of these angles is supplementary.
6.
From the figure
∴ ∠JlL = ∠JIK + ∠KIL
= 38° + 27°
= 65°
∴ ∠JlL = 65°
7.
(b)
44°
8.
(d)
interior angles on the same side of the transversal are supplementary.
9.
(c)
80°
10.
(a)
360°
11.
(c)
one common arm, one common vertex, no common interior
12.
Step 1: Draw the given angle ∠ABC with the measure 80° using protractor.
Step 2: With B as center and convenient radius, draw an arc to cut BA and BC. Mark the points of intersection as E on BA and F on BC.
Step 3: With the same radius and E as center, draw an arc in the interior of ∠ABC and another arc of same measure with center at F to cut the previous arc.
Step 4: Mark the point of intersection as G. Draw a ray BX through G. BG is the required bisector of the given angle ∠ABC
13.
(i) The corresponding angles to b° are d° and 68°.
(ii) The measure of b° is 68° (Because b° corresponds to 68°)
(iii) The angles having measure 68° are b°, d°, g°, i° and k°.
(iv) The angles having measure 112° are a°, c°, e°, f°, h° and j°.
7th Standard Syllabus & Materials
7th Standard
Tamilnadu 7th Standard Maths T2 - роЗропро▒рпНроХрогро┐родроорпН Important Questions And Answers Study Material - QB365 Set B
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - роЗропро▒рпНроХрогро┐родроорпН Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - роЕро│ро╡рпИроХро│рпН Important Questions And Answers Study Material - QB365 Set C
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - роЕро│ро╡рпИроХро│рпН Important Questions And Answers Study Material - QB365 Set B
Tamilnadu Stateboard 7th Standard Subjects
Tamilnadu Stateboard Standards
