# Sides of Triangle

1.). If the lengths of two sides of a triangle are 8 and 12, which of the following can be the length of the third side?

• (A)(B)  5  (C) 3  (D) 20

2. If the lengths of two sides of a triangle are 21 and 23, which of the following can be the length of the third side?

• (A)(B)  45  (C) 50  (D) 20

3. If the lengths of two sides of a triangle are 1 and 4, which of the following can be the length of the third side?

• (A)(B)  3  (C) 4  (D) 5

4. If the lengths of two sides of a triangle are 9 and 15, which of the following can be the length of the third side?

• (A)(B)  5  (C) 6  (D) 7

5. If the lengths of two sides Of a triangle are 3 and 8, which of the following cannot the length of the third side?

• (A) 5  (B)  6  (C) 9  (D) 10

6. If the lengths of two sides of a triangle are 9 and I l, which of the following cannot be the length of the third side?

• (A) 8  (B)  12  (C) 19  (D) 21

7. Which of the following can represent the lengths of three sides of a triangle?

• (A) {1,3,4}
• (B) {2,5,4}
• (C) {3,6,10}
• (D) {2,3,7}

8. Which of the following can represent the lengths of three sides-of a triangle?

• (A) {4,5,8}
• (B) {1,1,2}
• (C) {6,8,15}
• (D) {11,12,24}