Find the area of a pentagon ABCDE in which AB =BC =CD=EA
and ED = 5 cm. Also, AD = BD=6 cm
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Step-by-step explanation:
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Area of pentagon=
Step-by-step explanation:
AB=BC=CD=EA=ED=5cm
AD=BD=6cm
Heron's formula:
Area of triangle=
Where s=Half perimeter
Half perimeter of triangle ADE=
Half perimeter of triangle ABD=
Half perimeter of triangle BCD=
Area of triangle ADE=
Area of triangle ADE=Area of triangle BCD=12 square cm
Area of triangle ABD=
Area of pentagon=Ar(ADE)+ar(ABD)+ar(BCD)=12+12+13.6=
Area of pentagon=
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https://brainly.in/question/3915116:Answered by RohitkumarGupta
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