Free AMC Math Worksheet Generator

Mathbound · Contest practice

Coordinate Geometry worksheet

Mixed difficulty

Name

Date

1.
Lattice points strictly inside the right triangle with vertices $(0,0)$ , $(8,0)$ , $(0,15)$ ?
- A.60
- B.49
- C.48
- D.50
- E.23
2.
Lattice points strictly inside the right triangle with vertices $(0,0)$ , $(9,0)$ , $(0,5)$ ?
- A.15
- B.17
- C.14
- D.22.5
- E.16
3.
Lattice points strictly inside the right triangle with vertices $(0,0)$ , $(13,0)$ , $(0,7)$ ?
- A.37
- B.20
- C.45.5
- D.36
- E.35
4.
Lattice points strictly inside the right triangle with vertices $(0,0)$ , $(6,0)$ , $(0,15)$ ?
- A.45
- B.35
- C.34
- D.36
- E.21
5.
Lattice points strictly inside the right triangle with vertices $(0,0)$ , $(13,0)$ , $(0,5)$ ?
- A.18
- B.32.5
- C.24
- D.23
- E.25
6.
Lattice points strictly inside the right triangle with vertices $(0,0)$ , $(13,0)$ , $(0,10)$ ?
- A.55
- B.23
- C.65
- D.54
- E.53
7.
Lattice points strictly inside the right triangle with vertices $(0,0)$ , $(15,0)$ , $(0,6)$ ?
- A.45
- B.35
- C.34
- D.36
- E.21
8.
Lattice points strictly inside the right triangle with vertices $(0,0)$ , $(16,0)$ , $(0,11)$ ?
- A.76
- B.27
- C.88
- D.75
- E.74
9.
Lattice points strictly inside the right triangle with vertices $(0,0)$ , $(9,0)$ , $(0,15)$ ?
- A.67.5
- B.56
- C.55
- D.57
- E.24
10.
Lattice points strictly inside the right triangle with vertices $(0,0)$ , $(7,0)$ , $(0,16)$ ?
- A.46
- B.23
- C.56
- D.45
- E.44

Answer key · worked solutions

1. B. 49
$\frac{(A-1)(B-1)}{2}$ for this triangle. Formula. $49$ .
2. E. 16
$\frac{(A-1)(B-1)}{2}$ for this triangle. Formula. $16$ .
3. D. 36
$\frac{(A-1)(B-1)}{2}$ for this triangle. Formula. $36$ .
4. B. 35
$\frac{(A-1)(B-1)}{2}$ for this triangle. Formula. $35$ .
5. C. 24
$\frac{(A-1)(B-1)}{2}$ for this triangle. Formula. $24$ .
6. D. 54
$\frac{(A-1)(B-1)}{2}$ for this triangle. Formula. $54$ .
7. B. 35
$\frac{(A-1)(B-1)}{2}$ for this triangle. Formula. $35$ .
8. D. 75
$\frac{(A-1)(B-1)}{2}$ for this triangle. Formula. $75$ .
9. B. 56
$\frac{(A-1)(B-1)}{2}$ for this triangle. Formula. $56$ .
10. D. 45
$\frac{(A-1)(B-1)}{2}$ for this triangle. Formula. $45$ .

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