Step-by-step explanation:
Given
Base (b) = 22 mm
Perimeter (P) = 64 mm
Area (A) = ?
Now first calculating The length
2( L + b) = 64
2 ( L + 22) = 64
2L + 44 = 64
2L = 64 - 44
2L = 20
Therefore L = 10 mm
Now
Area = L * b
= 10 * 22
= 220 mm²
Answer:
[tex]22 \times 2 = 44 \\ 64 - 44 = 20 \\ width = 20 \div 2 = 10 \\ area = 22 \times 10 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 220 {mm}^{2} [/tex]
