Question

4.
In rectangle ABCD, the length is twice the breadth. In the square each side is equal to
one unit more than the breadth of the rectangle. In triangle LMN. The altitude (height)
is one unit less than the breadth of the rectangle. Area of the rectangle is 18 square
units. The sum of the areas of the rectangle and the square is equal to the area of the
triangle. Find the base of the triangle (MN) and find area of the square JAMTI 2011]​

Answer 1

Step-by-step explanation:

breadth=b

length=2b

2b*b=18

b^2=9

b=3

side of square =3+1=4

area of square=16

height of triangle=3-1=2

area of triangle=18+16=34

1/2*2*base=34

base=34