Demonstration Lesson Presentation(Surface Area of Square Pyramid)Orig

7/29/2019 Demonstration Lesson Presentation(Surface Area of Square Pyramid)Orig

1/25


2/25

We thank you for everything ,

that you have given into our lives.

We ask that you multiply your grace

and mercy on us today.

Add to us a sense of your greatness.

Divide our blessings with those

around us,and we ask that you subtract ,

all of our sins away from us.

In your name we pray...

Amen


3/25


4/25

Welcome teachers in our school,We are so glad that you came all beautiful.We wont give up to be on top,

In either way your presence is enough.CHORUS:

Everyone else in this room enjoy itMath will be love by you.

Maybe you think that teaching surface areais really difficult and maybe hard to teach.Surely our teacher will share her own technique,You dont know , ohohMaam Sarah make it possible.

Math surely light up like nothing elseThe way we solve triangles youll be overwhelmedSurely our teacher will share her own technique,You dont know , ohohMaam Sarah make it possible.Ohohoh, Math will be love by all.


5/25


6/25

1. What is the area of a glass topthat will fit a square tablewhose edge is 25 cm?

625 cm2


7/25

2. A triangular cardboard has abase 16 cm and a height of12 cm. How big is it?

96 cm2


8/25

3. A triangle that is 30 cm as itsbase and 13 cm high. Findthe area.

195 cm2


9/25


10/25

has a square base and 4 congruent

triangles


11/25


12/25

12 cm

15 cm

A square pyramid has a base of 12cm and a slant height of 15 cm.What is the surface area of thepyramid?


13/25

A square pyramid has a base of 12 cm and aslant height of 15 cm. What is the surface areaof the pyramid?

SA = 12 cm x 12 cm + 4 (12 cm x 15 cm)2

= 144 cm + 4 (180)2

= 144 cm + 360 cmSA = 504 cm


14/25

2


15/25

2. SA = ?, if

b = 9 dm

h = 9 dm

3. SA = ?

12

cm

5

cm


16/25

Square pyramid hasa square base and

4 congruent triangles.


17/25

SA = s x s + 4 (bh)2


18/25

Group I Find the surfacearea of a squarepyramid modelIf: b = 10 cm h = 12 cm


19/25

Group II Measure the squarepyramid and find itssurface area.


20/25

Group III - A square pyramidtent has a base of4.5 m and 2 m high.How big is the tent?


21/25

Group IV In the figure, if a side ofthe square base measures10 cm while the slantheight of each of thecongruent faces is 15, findthe surface area of apyramid.


22/25

1. How much wrapping paper is needed to wrap a square

pyramid and has a 8 cm as its base and 10 cm as its height.

a. 224 cm2 b. 220 cm2 c. 225 cm22. The Grade Six pupils made a model of square pyramid

made of plywood. It is 6m high and has base of 8m. What

is the surface area of a pyramid?

a. 165 m2

b. 160 m2

c. 150 m2

3. SA = ?

20 cm

10 cm

a. 100 cm2

b. 300 cm2

c. 500 cm2

4. SA = ?

5.5cm

2.5 cm

a. 33.75 cm2

b. 25 cm2

c. 30 cm2

5. SA = ? If: b = 3 m h = 5 m

a. 30 m2 b. 39 m2 c. 40 m2


23/25


24/25


25/25

Demonstration Lesson Presentation(Surface Area of Square Pyramid)Orig

Documents

Transcript of Demonstration Lesson Presentation(Surface Area of Square Pyramid)Orig