8th Standard Syllabus & Materials
8th Standard
TN 8th Tamil இயல் 3 - கல்வி கரையில - வினைமுற்று Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - மயங்கொலிகள் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை -பட்டமரம் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - இயற்கையை போற்றுவோம் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 1 - தமிழ் இன்பம் - ஆழிக்கு இணை Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2-ஈடில்லா இயற்கை - திருக்குறள் Important Questions And Answers Study Material - QB365 Set A
Published on: 13/05/2022
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Questions + Answers key
Take MCQ Maths Test1.
Find the distance between the helicopter and the ship.
2.
The length and breadth of the screen of an LED-TV are 24 inches and 18 inches. Find the length of its diagonal.
3.
In the figure, find PR and QR.
4.
Find the unknown side in the following triangles.
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5.
Check whether given sides are the sides of right-angled triangles, using Pythagoras theorem.
(i) 8,15,17
(ii) 12,13,15
(iii) 30, 40, 50
(iv) 9, 40, 41
(v) 24, 45, 51
1.
From the figure
d2 = 802 + 1502
= 6400 + 22500
d2 = 28900
d = 170
The distance between the helicopter and the ship is 170 m.
2.
30 inches
3.
25, 24
4.
(i) From the figure,
x2 = 92 + 402
= 81 + 1600
= 1681
\(x=\sqrt{1681}\)
x = 41
(ii) From the figure
342 = 302 + y2
1156 = 900 + y2
y = 1156 - 900
y2 = 256
\(y=\sqrt{256}\)
y = 16
(iii) From the figure
392 = 362 + z2
1521 = 1296 + Z2
z2 = 1521- 1296
z2 = 225
\(z=\sqrt{225}\)
z = 15
5.
(i) 8,15,17
82 + 152 = 64+ 225
= 289
= 172
i.e., 82 + 152 = 172
8, 15, 17 are the sides of a right-angled triangle
(ii) 12,13, t5
122 + 132 = 144+ 164
= 313
152 = 225
\(\text { i.e., } 12^{2}+13^{2} \neq 15^{2}\)
12, 13, 15 are not the sides of a right angled triangle
(iii) 30,40,50
302 + 402 = 900 + 1600
= 2500 ;
= 502
i.e,, 302 + 402 = 502
30 ,40,50 are the sides of a right angled triangle.
(iv) 9, 40,41
92 + 402 = 81 + 1600
= 1681
= 412
i.e., 92 + 402 = 412
9, 40, 41 are the sides of a right angled triangle
(v) 24,45,51
242 + 452 = 576 + 2025
= 2601 = 512
24,45,51 are the sides of a right angled triangle
8th Standard Syllabus & Materials
8th Standard
TN 8th Tamil இயல் 3 - கல்வி கரையில - பாடறிந்து ஒழுகுதல் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 3-கல்வி கரையில - பல்துறைக் கல்வி Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 3-கல்வி கரையில - புத்தியைத் தீட்டு Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - தமிழர் மருத்துவம் ( நேர்காணல்) Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 8th Standard Subjects
Tamilnadu Stateboard Standards
