Explanation:
C. Perimeter of Trapezium
= sum of all sides
= 8 + 4 + 4 + 6
= 22
D. Area of Trapezium
= 1/2 × (a + b) × height
= 1/2 × (8 + 6) × √15
= 7√15
E. Perimeter of square
= 4(side)
= 4(5)
= 20
F. Area of square
= side × side
= 5 × 5
= 25
I. Answer
The area will be 4 times more than the current area of about 64 units².
side² = 16
side = √16
side = 4
If the side is doubled, new side = 4 × 2 = 8
New Area: 8² = 64 units²
