class 10 chapter 8

1
Organized By Mudassar Ali Shah www.mudassaralishah.com Page 1 TEST MATHEMATICS CHAPTER # 8 CLASS: 10 TH NAME: _______________ TIME: 20 min NOTE: Attempt any five questions, 1 st two Questions are necessary. Total Marks: 53, 38 يل۔م ل نم ل درجذي3 5 13 B A 12 Find out all trignometric ratios of above triangle. 3 Prove that (3+3+3+3+3+5) ت ب ث(i) (sec 2 1) cos 2 = sin 2 (ii) cos sin = 1 tan (iii) cos 2 sin 2 = 2 cos 2 1 (iv) 1 + sin 1 sin = 1 sec 2 (v) 1sin cos = cos 1+sin (vi) csc sec csc +sec = 1tan 1+tan (vii) csc = sec 2 1 Find out these values without using calculator (3+2) يل۔م ل ب ٹ ل ول يلک ک ل ت ل ت ل درجذي(i) sin 60 ° cos 30 ° + cos 60 ° sin 30 ° (ii) cos 60 ° cos 30 ° + sin 60 ° sin 30 ° ار ہملان ايل60 ۔م توت۔ملان ٹ ل م5 The Length Of Every Side Of A Square Is 60m,Find Out The Length Of Its Diagonal. 5 Find out the angle P in the following diagram. 5 ليم ۔ ل زاوي ل دی ليم تم لق ۔5 x ل۔ ہ(x)m اور(x+7)mع اورا(x+9)m توتABCD ت ھي لم ک ل ل ي ط ت ست م ل ايTHE diagonal of a rectangular field ABCD is (x+9) m and the sides are (x+7) m and (x) m. find the value of x. ر ايل يلمد زاويل ج300 لي ور ٹث او ٹ ل م450 ۔ ٹ ل م5 Find the measure of angle of elevation of the sun, if a tower 300m high casts a shadow 450m long. 300 ول زاويل ت ايلوادرثلڑی ايل او ٹ ل مº 70 اور ول زاويل ترےےدو درثلº 50 ندرثل يلڑا۔درثل ث؟ وا 5 From the top of a hill 300m high, the measure of angle of depression of a point on the nearer shore of the river is 70° and measure of angle of depression of a point directly across the river is 50°.find the width of the river. How far is the river from the foot of hill?

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Class 10 chapter no. 8

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Page 1: Class 10 Chapter 8

Organized By Mudassar Ali Shah www.mudassaralishah.com Page 1

TEST MATHEMATICS CHAPTER # 8

CLASS: 10TH NAME: _______________ TIME: 20 min

NOTE: Attempt any five questions, 1st two Questions are necessary. Total Marks: 53, 38

۔ لایت ںیتبسن ولعمم رکيل

ثلثم یک امتم وکتنل 3 درج ذي

𝐶

𝜑

5 13

B 𝜃 A

12

Find out all trignometric ratios of above triangle. 3

Prove that (3+3+3+3+3+5) ےیجیک ہک

ت

اب

ث

(i) (sec2 𝜃 − 1) cos2 𝜃 = sin2 𝜃 (ii) cos 𝜃

sin 𝜃=

1

tan 𝜃 (iii) cos2 𝜃 − sin2 𝜃 = 2 cos2 𝜃 − 1

(iv) 1 + sin 𝜃 1 − sin𝜃 =1

sec 2 𝜃 (v)

1−sin𝜃

cos𝜃= cos𝜃

1+sin𝜃 (vi)

csc 𝜃−sec 𝜃

csc 𝜃+sec 𝜃=

1−tan 𝜃

1+tan 𝜃

(vii) csc 𝜃 = sec2 𝜃 − 1

Find out these values without using calculator (3+2) ۔ ر ولعمم رکيلل

ر ےک ب

ٹ

لو لللک يک

ل

ت

ل

ت

يقل درج ذي

(i) sin 60° cos 30° + cos 60° sin 30° (ii) cos 60° cos 30° + sin 60° sin 30°

ر علض یک دقمار دان ےک ہ ر یک ابملیئ ولعمم رکںی۔ 60ايل رم عب مل

ت

دان ےک وت ر ےہ۔مل

ٹ

ل 5 م

The Length Of Every Side Of A Square Is 60m,Find Out The Length Of Its Diagonal. 5

Find out the angle P in the following diagram. 5 ۔ولعمم رکيل 𝑃 زاويل ل دی یئگ لکش يم

ولعمم رک يل

ت

ل م ق۔x 5 ۔ یک ل

m(x) ہ اور (x+7)m اوراالضع (x+9)m ر

ت

ABCDاک وت

ت

لم ھيک

ل امن يلط

ت

ستم

ايل

THE diagonal of a rectangular field ABCD is (x+9) m and the sides are (x+7) m and (x) m. find the value of x.

اور اک اسيل 300ج اک زاويل وعصد ولعمم رکيل ہکبج ايل وسر

ٹ

ر اوےچن ث

ٹ

لر ابمل وہ۔ 450م

ٹ

ل 5 م

Find the measure of angle of elevation of the sun, if a tower 300m high casts a shadow 450m long.

300رول

ر اویچن ايل اہپڑی یک وچیٹ ےس درثلا ےک اس لح رپ واعق ايل ہطقن اک زاويل ت

ٹ

لرول ےہاورº70م

ےہ۔درثلا یک وچڑایئ رکيل زیندرثلا اٹچن ےک º50درثلا ےک دورسے انکرے رپ زاويل ت

5 ےنتک افےلصرپ وا عق ےہ؟ ث اےئ ےس

From the top of a hill 300m high, the measure of angle of depression of a point on the nearer shore of the

river is 70° and measure of angle of depression of a point directly across the river is 50°.find the width of

the river. How far is the river from the foot of hill?