Question

The line segment which divides a side of a triangle into two equal parts is

called as……..

(x) The sum of complementary angles is always equal to….

Q.3. Write True and false against each statement : [Marks: 05]

(I) Adjacent angles have a common arm. [ ]

(ii) If two lines intersect at a point , then the vertically opposite angles are

equal. [ ]

(iii) The sum of the lengths of any two sides of a triangle is less than third

side. [ ]

(iv)The number 0 is neither a positive nor a negative rational number. [ ]

v) The additive inverse of 4/7 is -4/7. [ ]

Q.4 Do the sums as directed :. [Marks: 12]

Find the value of :

(I) -1/8 ÷ 3/4 (ii) (-4) ÷ 2/3

B. Rewrite the following rational numbers in the simplest form (I) 25/45.

(ii) -8/10

C. Convert each part of the ratio to percentage :

(I) 3:1. (ii) 1:4.


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Answer 1

Answer:

1.Angle bisector

2. 180 degree

Q3. 1. True

2. When two lines intersect each other, then the opposite angles, formed due to intersection are called vertical angles or vertically opposite angles. A pair of vertically opposite angles are always equal to each other. ... When two lines meet at a point in a plane, they are known as intersecting lines.

3.Triangle Inequality Theorem. The sum of the lengths of any two sides of a triangle is greater than the length of the third side.

4.False

5.true

Q4 1.

Answer 2

Answer:

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