Chapter 11: Perimeter and Area

Questions

1. Area of triangle base $12$ cm, height $8$ cm.
2. Circumference of circle radius $21$ ($\pi=\tfrac{22}{7}$).
3. Perimeter of a rectangle with area $60$ cm$^2$ and length $12$ cm.
4. Area of parallelogram base $= 8$, height $= 5$.
5. Area of triangle base $= 10$, height $= 6$.
6. Circumference of circle $r = 7$ ($\pi = 22/7$).
7. Area of circle $r = 7$.
8. Perimeter of a semicircle $r = 7$.
9. Area of triangle with base $12$, height $8$.
10. Perimeter of a parallelogram sides $6, 4$.

Extra Practice (Optional)

• Area of parallelogram base $10$, height $7$.
• Radius of a circle with circumference $88$ (use $\pi=\tfrac{22}{7}$).
• Area of triangle sides $6, 8, 10$ (right triangle).