Question

please help me please solve number 5, 6 ,7 with process

Answer 1

here is your answer..........

Answer 2

$circumference = 88 \\ circumference = 2\pi \: r \\ 88 = 2\pi \: r \\ r = 88 \div 2\pi \\ r = (88 \times 7) \div 22 \times 2 \\ r = 14 \\ radius =14 cm \\ area = \pi \times r {}^{2} \\ area = 3.14 \times 14 \times 14 = 615.44cm ^{2}$