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AD is altitude of an isosceles triangle ...

AD is altitude of an isosceles triangle ABC in which AB = AC = 30 cm and BC = 36 cm. A point O is marked on AD in such a way that `angleBOC=90^(@)`. Find the area of quadrilateral ABOC.

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The correct Answer is:
108 `cm^(2)`
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ICSE-AREA AND PERIMETER OF PLANE FIGURES-EXERCISE 20(A)
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  13. The sides of a triangle field are in the ratio 5 : 3 : 4 and its peri...

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  14. Each of equal sides of an isosceles triangle is 4 cm greater than its ...

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  15. Calculate the area and the height of an equilateral triangle whose per...

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