Question

Suresh sketched three triangles as shown below. answer the following-- (i) He said that the value of x is 50 more than a right angle. Is his statement true? (ii) The value of y is 100 more than the value of an angle of equilateral triangle. Is this statement true? (iii) Suresh said that his mother’s age in year is same as value of z in degrees. What will be his mother’s age? (iv) The value of x+y+z is same as the angle turned by minutes hand in 1 hour? Is this statement true?
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Answer 1

Answer:

(a) No

(b) No

(c) 35

(d) No

Step-by-step explanation:

(a) right angle : 90

50 + 90 = 140

But x = 95

So, No

(b) Value of an angle of equilateral triangle is = 60 (180/3)

100 + 60 = 160

But y = 50

So, No

(c) z = 180 - 98 + 47

Therefore z = 35 (180 - 145)

His mother's age is 35.

(d) x + y + z = 95 + 50 + 35

= 180

But, minutes hand complete 360 is an hour.

So, this statement is also not true.

Answer 2

Answer:

1.true

2.false

3.35 years

4.true

5.1 false

2.true

3.false

Step-by-step explanation:

1.55+30+x=180 angle sum property

therefore x=95

3.acc.to angle sum property z+98+47=180

therefore z=35