A quadrilateral has one of its diagonal 14.8 cm the altitudes drawn to this diagonal are 8.4 cm and 5.7 cm find its area
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Answer:
104.34 cm^2
Step-by-step explanation:
- Let's divide the quadrilateral into two, and we will get two triangles.
- So,to find the area of triangle, we can find the areas of these triangles and add them.
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given,
- diagonal,AC =14.8cm
- DM. = 8.4 cm
- BN. =5.7 cm
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Area of triangle=(1/2)×base×height
- Area of ∆ABC
=(1/2)×AC×BN
=(1/2)×14.8×5.7
=42.18 cm^2
- Area of ∆ADC
=(1/2)×AC×DM
=(1/2)×14.8×8.4
=62.16cm^2
- Area of quadrilateral ABCD
=Area of∆ABC+Area of ∆ADC
=42.18+62.16
=104.34cm^2
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