Question

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Answer 1

Answer:

q 16 answer is 45;40

Step-by-step explanation:

Question none of the above

Answer 2

$\sf{Answer}$

16) Given :-

One angle of triangle is equal to 80°

Other two angles are equal

Let the two angles be x, x

As we know that

Sum of angles in triangle is 180°

Let A = 80°

B = C = x

Therefore

A + B + C = 180°

80° + x + x = 180°

80 + 2x = 180°

2x = 180°-80°

2x = 100°

x = 100/2

x = 50°

B = C = 50°

B = 50°

C = 50°

Hence option a is correct

verification :-

Hence we got two angles their sum should be equal to 180°

80° + 50° +50° = 180°

180° = 180°

Verified !

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17) Which of the following is a pythagoras triplet

We will check the options

Pythagoras triplet = Sum of squares of two sides = Square of the hypotenuse

AC² = AB² + BC²

a ) 6, 8 , 11

6² + 8² 11²

36 + 64. 121

100 ≠ 121

Hence option a is wrong

b) 3 , 4 , 5

3² + 4² 5²

9 + 16. 25

25 = 25

Option b satisfied

c) 5 , 6 , 8

5² + 6² 8²

25 + 36. 64

61 ≠ 64

hence option c is wrong

So, the correct option is b

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Final answers

16) a

17 ) b