Lesson 1(h1n1 Remediation)

CORAL SECONDARY SCHOOL SECONDARY 2 NORMAL TECHNICAL REVISION WORKSHEET 1: PYTHAGORAS THEOREM Name : _____________________ (

) Date : __________Class : _____

Chapter 5: Pythagoras Theorem Objectives of Lesson: • Calculate the area and perimeter or a right-angled triangle • Identify the hypotenuse of a right-angled triangle • State the relationship between all 3 sides of a right-angled triangle / state the Pythagoras Theorem • Find the unknown side of a right-angled triangle using the Pythagoras Theorem Relationship bet. All 3 sides of a right-angle triangle/ Pythagoras Theorem c 2  a 2  b2 c

a

b

Area of Triangle = Amount of Space Covered in the Triangle Area of a rectangle = length x breadth Area of a triangle =

length

1 x Area of a rectangle 2 breadth

1 = x length x breadth 2

Perimeter = Outline of the Triangle Perimeter of a triangle = Sum of all 3 sides of a triangle

1

Practice 1. Find the length of the unknown side in each of the following triangles. Also find its area and perimeter. All dimensions are in cm. Triangle (a)

Unknown Side

Area

Perimeter

4

3

(b)

x

y

5 13

2

Triangle (c)

Unknown Side

Area

Perimeter

x

2

3

(d) y

3

5

3