tolong ya gaiss sama caranya

[tex]l .persegi \: panjang\: = p \times l \\ = 13 \times 7 (14 \div 2) \\ = 91 \: cm {}^{2} \\ \\ l. \frac{1}{2} lingkaran \: = \pi \times r \times r \times \frac{1}{2} \\ \\ = \frac{22}{7} \times 7 \times 7 \times \frac{1}{2} \\ \\ = \frac{154}{2} = 77 \: cm {}^{2} \\ \\ \\ l.total \: = 91 \: {cm}^{2} + 77 \: {cm}^{2} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 168 \: {cm}^{2} [/tex]