Q 1: Circumference of a semicircle: pi*r pi*r + 2*r pi*r^{2}

Q 2: Area of a rectangle: 4a a^{2} lb

Q 3: Area of square: a^{2} 2(l+b) 4a

Q 4: Area of a semicircle: 1/2*(pi*r^{2}) 2*pi*r pi*r^{1}

Q 5: Perimeter a rectangle: 2(l+b) a^{2} lb

Q 6: Diamater of a circle: 2(l+b) 2r 2*pi*r

Q 7: Perimeter of a square: lb a^{2} 4a

Q 8: Area of triangle: lb 1/2 bh 4a

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!

