SEBA Class 6 Mathematics Chapter 6 Elementary Shapes

SEBA Class 6 Mathematics Chapter 6 Elementary Shapes Solutions, SEBA Class 6 Maths Notes in English Medium, SEBA Class 6 Mathematics Chapter 6 Elementary Shapes Notes to each chapter is provided in the list so that you can easily browse throughout different chapter Assam Board SEBA Class 6 Mathematics Chapter 6 Elementary Shapes Notes and select needs one.

SEBA Class 6 Mathematics Chapter 6 Elementary Shapes

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Also, you can read the SCERT book online in these sections Solutions by Expert Teachers as per SCERT (CBSE) Book guidelines. SEBA Class 6 General Mathematics Textual Question Answer. These solutions are part of SCERT All Subject Solutions. Here we have given SEBA Class 6 Mathematics Chapter 6 Elementary Shapes Solutions for All Subject, You can practice these here.

Elementary Shapes

Chapter – 6

1. By simple observation, fill in the blanks by using the sign<,> or =.

(i) AB ______________ PQ.

Ans: AB < PQ.

(ii) CD ______________ XY.

Ans: CD > XY.

(iii) PQ‌ _____________ CD.

Ans: PQ‌ > CD.

(iv) AB _____________ XY.

Ans: AB < XY.

(v) PQ ______________ XY.

Ans: PQ < XY.

(vi) AB ______________ CD.

Ans: AB < CD.

3. Classify each of the following angles (in degrees) as acute obtuse and reflex

Ans: 

3. Put (√) for the correct statement and (x) for the incorrect one.

(i) 1 straight angle = 3 right angles.

Ans: x

(ii) Reflex angles are larger than straight angles.

Ans: √

(iii) If the measure of an angle is more than 90° then it is called an acute angle.

Ans: x

(iv) 101° angle is an obtuse angle.

Ans: √

(v) An obtuse angle can be more than 180°

Ans: x

4. Final the measure of the following angles using a protector.

Ans: (i) 50° 

(ii) 50°

(iii) 115°

(iv) 99°

Using a protector, find the measure of the angle of each triangle and fill the measures in the given table.

Ans:  

1. Measure of the sides in (cm) of the triangle are given below. Classify the triangles as equilateral, isosceles and scalene.

Ans: (i) Equilateral triangle.

(ii) Isosceles triangle.

(iii) Scalene triangle.

2. Measure of the angles of some of the triangles are given below. Classify the triangles, whether they are acute angled, right angled or obtuse angled triangle.

Ans: (i) Right angled triangle.

(ii) Obtuse angled triangle.

(iii) Acute angled triangle.

(iv) Acute angled triangle.

(v) Right angled triangle.

3. Put (√) on the correct statement and (x) for the incorrect one. 

(i) A triangle can have two right angles.

Ans: ×

(ii) Two sides of an isosceles triangle are equal.

Ans: √

(iii) A triangle has only one median.

Ans: ×

(iv) All the three angles of an acute angled triangle are acute.

Ans: √

(v) All the three angles of an obtuse angled triangle are obtuse.

Ans: ×

(vi) A triangle has three altitudes.

Ans: √

1. In the following statements put (√) in the correct one and (x) in the incorrect one.

(i) Four sides of rectangle are equal.

Ans: ×

(ii) For a parallelogram, both the pair of the opposite sides are parallel.

Ans: √

(iii)  Every angle of a rhombus is 90°

Ans: ×

(iv) Each rectangle is a parallelogram.

Ans: √

(v) Each parallelogram is a rhombus.

Ans: ×

(vi) Each square is a rectangle.

Ans: √

(vii) If the four sides of a rectangle are equal, then it will be a square.

Ans: √

(viii) All the four sides of a square are of equal length.

Ans: √

(ix) If the other pair of sides of a trapezium is also parallel, then it will be a parallelogram.

Ans: √

(x) If one angle of a parallelogram is right angle, then it is a rectangle.

Ans: √

2. A parallelogram can be thought of as special trapezium, Give reason.

Ans: A parallelogram cannot be thoughts of as special trapezium, because both the pairs of opposite sides of a parallelogram are parallel and equal to each other, but in case of a trapezium one pair of opposite side are parallel and other two sides are slanting.

3. All squares are rhombus. Give reason.

Ans: All sides and all angles of a square are equal (each angle = 90°), on the other hand all sides of a rhombus are equal. That is why we can say that all squares are rhombus.

4. All rhombuses are parallelogram, but all parallelograms are not rhombus. Give reason.

Ans: Both the pairs of opposite sides of a parallelogram are parallel and equal to each other. All the sides of a rhombus are equal. Thus all rhombus are parallelogram but all sides of a rhombus are equal, not parallel. So, all parallelogram are not rhombus.

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