Question

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Answer 1

Answer:

Answer :

1. What is measurement of vertically opposite angle of 40⁰?

$\pink\longrightarrow$ The vertically opposite angle of 40⁰ is 40⁰.

• ➝ Because, A pair of vertically opposite angles are always equal to each other.

2. In respect of sides, how many types of triangles are there? What are they?

$\pink\longrightarrow$ On the basis of length of the sides. triangles are classified into three categories:

• ➝ Scalene Triangle
• ➝ Isosceles Triangle
• ➝ Equilateral Triangle

3. In respect of angles, how many types of triangles are there? What are they?

$\pink\longrightarrow$ On the basis of measurement of the angles, triangles are classified into three categories:

• ➝ Acute Angle Triangle
• ➝ Right Angle Triangle
• ➝ Obtuse Angle Triangle

4. How many acute angles are there in an obtuse angled triangle?

$\pink\longrightarrow$ There area 2 acute angles are in an obtuse angled triangle.

• ➝ Because, if one of the angles in the triangle is more than 90 degree, that triangle is an obtuse angle triangle. It is formed when two line segments are joined in such a way that they form an angle more than 90 degrees.

5. What is called parallelogram?

$\pink\longrightarrow$ A two-dimensional geometrical shape, whose sides are parallel to each other is called parallelogram.

• ➝ Diagram of parallelogram is given below. Check it from Brainly.in.

$\setlength{\unitlength}{1 cm}\begin{picture}(0,0)\thicklines\qbezier(1,1)(1,1)(6,1)\put(0.4,0.5){\bf{D}}\qbezier(1,1)(1,1)(1.6,4)\put(6.2,0.5){\bf{C}}\qbezier(1.6,4)(1.6,4)(6.6,4)\put(1,4){\bf{A}}\qbezier(6,1)(6,1)(6.6,4)\put(6.9,3.8){\bf{B}}\end{picture}$

$\rule{220pt}{4pt}$