Question

koi hai jo ise kabhi kar sakta h

explain with full explanation​

Answer 1

Answer:

60°

Step-by-step explanation:

AB = A'B'

BC= B'C'

angle B = angle B'

Therefore AC = A'C'

So by SSS PROPERTY the above two triangles are CONGRUENT.

Therefore angle A = angle A'

i.e 3x= 2x + 20°

3x-2x = 20°

x = 20°

We need angle B'A'C'

Angle B'A'C' = 2x+20

= 2 × 20 + 20 (x= 20.... proved)

= 40 + 20

= 60°

THANK YOU.

Answer 2

Answer:

⬆️⬆️

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Solution 2:

(i) 336 and 782

336 to the nearest hundred = 300 and,

782 to the nearest hundred = 800

∴ Required sum = (300+800) = 1100

(ii) 546 and 342

342 to the nearest hundred = 300

∴ Required sum = (500+300) = 800

(iii) 270 and 495

270 to the nearest hundred = 300 and,

495 to the nearest hundred = 500

∴ Required sum = (300+500) = 800

(iv) 4280 and 5295

4280 to the nearest hundred = 4300 and,

5295 to the nearest hundred = 5300

∴ Required sum = (4300+5300) = 9600

(v) 4230 and 2410

4230 to the nearest hundred = 4200 and,

2410 to the nearest hundred = 2400

∴ Required sum = (4200+2400) = 6600

(vi) 30047 and 39287

30047 to the nearest hundred = 30000 and,

39287 to the nearest hundred = 39300

∴ Required sum = (30000+39300) = 69300

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