area of triangle
DESCRIPTION
AREA OF TRIANGLETRANSCRIPT
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Welcome
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( For any Triangle.)
AREA OF THE TRIANGLE
= bh
12_
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Let we see how it is true…
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WE KNOW THAT AREA OF RIGHT ANGLED
TRIANGLE
B = base of the triangleH = height of the
triangle
= bh
2_1
![Page 5: AREA OF TRIANGLE](https://reader036.vdocuments.us/reader036/viewer/2022082923/5565733ad8b42a7b518b4f72/html5/thumbnails/5.jpg)
ALSO WE KNOW THAT TRIANGLES WITH THE
SAME BASE AND BETWEEN THE SAME PARALLELS ARE OF
EQUAL AREA
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B C
A D12 ..
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.
B C
A
hh
If we move A to point 1then
![Page 8: AREA OF TRIANGLE](https://reader036.vdocuments.us/reader036/viewer/2022082923/5565733ad8b42a7b518b4f72/html5/thumbnails/8.jpg)
Here we get an acute angled Triangle.It has same area of the right angled triangle
![Page 9: AREA OF TRIANGLE](https://reader036.vdocuments.us/reader036/viewer/2022082923/5565733ad8b42a7b518b4f72/html5/thumbnails/9.jpg)
Therefore area of the acute angled triangle
= bh
2_1
![Page 10: AREA OF TRIANGLE](https://reader036.vdocuments.us/reader036/viewer/2022082923/5565733ad8b42a7b518b4f72/html5/thumbnails/10.jpg)
.
B C
A
h
If we move A to point 2then
![Page 11: AREA OF TRIANGLE](https://reader036.vdocuments.us/reader036/viewer/2022082923/5565733ad8b42a7b518b4f72/html5/thumbnails/11.jpg)
Here we get an obtuse angled Triangle.It has same area of the right angled triangle
![Page 12: AREA OF TRIANGLE](https://reader036.vdocuments.us/reader036/viewer/2022082923/5565733ad8b42a7b518b4f72/html5/thumbnails/12.jpg)
Therefore area of the obtuse angled triangle
= bh
2_1
![Page 13: AREA OF TRIANGLE](https://reader036.vdocuments.us/reader036/viewer/2022082923/5565733ad8b42a7b518b4f72/html5/thumbnails/13.jpg)
Thank you