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Byju's Answer
Standard VIII
Mathematics
Area of Triangle
FInd the area...
Question
FInd the area of figure ABCDE.
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Solution
If we look at the figure and divide it into known figures we get,
ABDO - Square; BCD - Isosceles Triangle; AOE - Right angle Triangle
Area of ABCDE = area(ABDO) + area(△BCD) + area(△AOE)
Lets find the area of individual figures and add.
area(ABDO) =
Side
2
=
4
2
=
16
c
m
2
area(△AOE) =
1
2
×
height
×
base
=
1
2
×
4
×
3
=
6
c
m
2
area(△BCD) =
1
2
×
height
×
base
=
1
2
×
1.5
×
4
=
3
c
m
2
Area of ABCDE = area(ABDO) + area(△BCD) + area(△AOE)
= 16 + 6 + 3 = 25 cm²
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