Perimeter and area Quiz

1. Find the area of a triangle with base $10$ cm and perpendicular height $7$ cm.

• A. $70$ cm$^2$
• B. $35$ cm$^2$
• C. $17$ cm$^2$
• D. $24.5$ cm$^2$

2. Find the circumference of a circle of diameter $10$ cm.

• A. $31.4$ cm
• B. $78.5$ cm
• C. $62.8$ cm
• D. $314$ cm

3. Find the area of a circle of radius $6$ cm.

• A. $37.7$ cm$^2$
• B. $18.8$ cm$^2$
• C. $226$ cm$^2$
• D. $113$ cm$^2$

4. Find the arc length of a sector with radius $9$ cm and angle $40^\circ$.

• A. $56.5$ cm
• B. $3.14$ cm
• C. $6.28$ cm
• D. $25.1$ cm

5. A $10$ cm by $6$ cm rectangle has a $2$ cm by $3$ cm rectangle cut out. Find the remaining area.

• A. $60$ cm$^2$
• B. $54$ cm$^2$
• C. $66$ cm$^2$
• D. $48$ cm$^2$