Question

Calculate the area of quatrilateral ABCD in
which angle A
90° , AB =36, Bc= 42 cm , CD = 39 cm
and AD= 27 cm​

Answer 1

Answer:

The final answer is 1242 cm square.

• we made the quadrilateral into two triangles.
• one of them is right angle triangle.
• by using Pythagoras Theorem with came to find the right angled Triangle's hypotenuse = diagonal of the quadrilateral.
• I don't know whether you know about the herons formula or not.
• the second part's area can be obtained by using the herons formula.
• by adding the both the areas we can get the area of the quadrilateral you are searching for.

I also gave a brief explanation about the herons formula in the 3rd pic.

If you are not having any idea about the herons formula you can go through YouTube videos.

GOOD LUCK