Question

Pls answer fast with EXPLANATION i will surely mark as brainliast and thanks.
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Answer 1

Answer:

let the square be =A

let the triangle be =B

finding the area of square A

area = 20×20 =400 square units

finding area of small triangle =B

area = 1\2 ×L×B

= 1\2 ×4×4 = 8 units

area of octagon = area of triangle - area of square

= A - 4b

= 200 - 4 × 8

= 168 units

therefore the area of remaining octagon is 168

Answer 2

Please refer the below image