on the design for a maths presenttion

1. Heron’s
Formula
By Group 2

2. 1. Question – 1 of 12.1
2. Question – 2 of 12.1
3. Question – 3 of 12.1
4. Question – 4 of 12.1
5. Extra questions of question 1
6. Extra questions of question 2
7. Extra questions of question 3
8. Extra questions of question 3
Contents of this ppt

3. 12.1

4. A traffic signal board, indicating ‘SCHOOL
AHEAD’, is an equilateral triangle with side
a. Find the area of the signal board, using
Heron’s formula.If its perimeter is 180 cm,
what will be the area of the signal board?
Q1

6. Q2
The triangular side walls of a flyover have
been used for advertisements. The sides of
the walls are 122 m, 22 m and 120 m (see
figure). The advertisements yield an earning
of ₹5000 per m² per year. A company hired
one of its walls for 3 months. How much rent
did it pay?

7. Let the sides of the triangular will be
a = 122m, b = 12cm, c = 22m
Semi-perimeter, s = a+b+c2
(122+120+224)m = 2642 m = 132m
The area of the triangular side wall
Rent for 1 year (i.e. 12 months) per m2 = Rs.
5000
∴ Rent for 3 months per m2 = Rs. 5000 x 3/12
= Rent for 3 months for 1320 m2 = Rs. 5000 x
3/12 x 1320 = Rs. 16,50,000.

8. Q3
There is a slide in a park. One of its side
Company hired one of its walls for 3
months.walls has been painted in some
colour with a message “KEEP THE PARK
GREEN AND CLEAN” (see figure). If the sides
of the wall are 15 m, 11 m and 6m, find the
area painted in colour.

9. Let the sides of the wall be
a = 15m, b = 11m, c = 6m
Semi-perimeter,

10. Q4
Find the area of a triangle two sides of which are
18 cm and 10 cm and the perimeter is 42 cm.

11. Let the sides of the triangle be a =18 cm, b =
10 cm and c = x cm
Since, perimeter of the triangle = 42 cm
∴ 18cm + 10 cm + xcm = 42
x = [42 – (18 + 10)cm = 14cm
Now, semi-perimeter, s = 42/2cm = 21 cm

12. Extra
Questions

13. Q4
Find the area of a triangle two sides of which are
31 cm and 08 cm and the perimeter is 20 cm.

14. October
Mon Tue Web Thu Fri Sat Sun
1 2 3 4
5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30 31
Week of
October 19
Mercury is the closest planet
to the Sun and the smallest
one in the Solar System

15. Weekly Notes
Important To Do Remember Keywords
Neptune is the
farthest planet
from the Sun
Despite being
red, Mars is a
cold place
Jupiter is a gas
giant and the
biggest planet
Venus has a
beautiful name,
but also high

16. Exercises Book List
Venus Jupiter Mars
Venus has a
beautiful name
Jupiter the
biggest planet
Despite being
red it is cool
Neptune Mercury Saturn
Neptune is the
farthest planet
Mercury the
closer planet
Saturn is the
ringed one

17. Weekly Sessions
Monday Tuesday Wednesday Thursday Friday
Lesson 1: Lesson 2: Lesson 3: Lesson 4: Lesson 5:
The title
goes here
The title
goes here
The title
goes here
The title
goes here
The title
goes here

18. Class Objectives
Neptune Earth
Neptune is the farthest
planet from the Sun and
the fourth-largest one
Earth is the third planet
from the Sun and the only
one that harbors life

19. Weekly Class Organizer
Monday
Class 1
Class 2
Activities
Tuesday
Class 3
Homework
Wednesda
y
Class 4
Activities
Thursday
Class 5
Friday
Activities
Homework
Class 6
Notes:
Hour
08:00-09:00
10:00-11:00
12:00-01:00
01:00-02:30
Recess

20. Weekly Events
Monday
Tuesday
Venus has a
beautiful name
Wednesday
Mercury is the
closest planet
Thursday
Jupiter is the
biggest planet
Friday
Neptune is the
farthest planet
Mars is a cold
planet

21. Daily Schedule
Venus
Venus has a
beautiful name
Saturn
Saturn is a gas
giant with rings
Neptune
Neptune is the
farthest planet
08:00 09:00 10:00 11:00 12:00

22. A Picture Is Worth
a Thousand Words

23. Name of Activity 1
Do you know what helps you make your
point clear? Lists like this one:
● Because they’re simple
● You can organize your ideas clearly
● And because you’ll never forget to
buy milk!
And the most important thing: the
audience won’t ever miss the point of
your presentation
Monday

24. Some Concepts to Remember
Venus Earth Jupiter
Venus has a
beautiful name, but
also high
temperatures
Earth is the third
planet from the Sun
and the only one
Jupiter is a gas giant
and the biggest
planet

25. To-do List!
To Do! My Tasks!
Write a pending task here
Write a pending task here
Write a pending task here
Write a pending task here
Write a pending task here
Write a pending task here
Write a pending task here
Write a pending task here
Write a pending task here Write a pending task here

26. Homework Review
Exercise name Result Score
Mars: Despite being red, Mars is a cold place full of iron 8
Earth: Earth is the third planet from the Sun 1.5
Venus: Venus has a beautiful name 10
Jupiter: Jupiter is a gas giant and the biggest planet 4
Saturn: Saturn is a gas giant made of hydrogen 7
Notes:

27. 4,498,300,000
Big numbers catch your
audience’s attention

28. Recommended Time per Unit
It’s the farthest
planet from the Sun
Neptune
Saturn is a gas giant
made of hydrogen
Saturn
Despite being red,
Mars is a cold place
Mars
Venus has a
beautiful name
Venus
To modify this graph, click on it, follow the link, change the data and paste the resulting graph here
50%
10%
20%
20%

29. Class Material
Mercury
Mercury is the
smallest planet
Jupiter
Jupiter is the
biggest planet
Mars
Mars is actually a
cold place
Venus
Venus has high
temperatures

30. earths is the Sun’s mass
333,000.00
is Jupiter’s rotation period
24h 37m 23s
is the distance between Earth and the Moon
386,000 km

31. 50%
Despite being red,
Mars is cold
Mars
75%
Venus has a
beautiful name
Venus
25%
It’s the ringed one
and a gas giant
Saturn
Scores per Unit

32. Project Schedule
Mon Tue Wen Thu
Phase 1
Phase 2
Task 1
Task 2
Task 1
Task 2
Fri

33. Test Answers
Question 2
A B C D E
A B C D E
Question 1
Question 3 A B C D E
Question 4 A B C D E

34. Future International Lecture
It’s the farthest
planet from the Sun
Neptune
Despite being red,
Mars is a cold place
Mars
Venus has a
beautiful name
Venus

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You can replace the image
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Teachers Team

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