Look at the figure and answer the following question. Name the vertex of ∠ ABC .

We know that, The vertex is the common end point at which the two rays meet. Hence, the vertex of the given angle is B.

Look at the figure. Name the three angles shown in the figure.

We know that, Angle is the region between two rays starting from the same point. The starting or common point is called the vertex of an angle and the rays are called the arms or sides of the angle. The angle formed can be showing by using the symbol " ∠ " followed by the letters such that, vertex always can be written in the middle and the other points on either side of the vertex point. Given figure is Hence, As stated above, there are three angles formed in the given figure. They are ∠ ABD , ∠ DBC , ∠ ABC .

Look at the following figure. Name the points that are on ∠ ABD as well as on ∠ CBD .

We know that, Adjoining, adjacent, bordering all mean near or close to something. Adjoining implies touching, having a common point or line. Hence, the name of the points that are on ∠ ABD as well as on ∠ CBD are B, E and D.

Loot at the following figure and fill in the blank. Common points on ∠ 1 and ∠ 2 are _____.

We know that, Adjoining, adjacent, bordering all mean near or close to something. Adjoining implies touching, having a common point or line. Hence, the common points on ∠ 1 and ∠ 2 are B and C.

E M B I B E

CPA Maths - A Singapore Approach>Chapter 11 - Basic Geometrical Ideas>EXERCISE

Embibe Experts Solutions for Chapter: Basic Geometrical Ideas, Exercise 6: EXERCISE

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Embibe Experts Mathematics Solutions for Exercise - Embibe Experts Solutions for Chapter: Basic Geometrical Ideas, Exercise 6: EXERCISE

Attempt the free practice questions on Chapter 11: Basic Geometrical Ideas, Exercise 6: EXERCISE with hints and solutions to strengthen your understanding. CPA Maths - A Singapore Approach solutions are prepared by Experienced Embibe Experts.