Calculating areas on squared paper
Answers are for parents and teachers.
1
By Pick's formula, if M = 14 and N = 9, what is the area?
15
2
A parallelogram has base 12 and height 7. Find its area.
84
3
A 3 × 2 rectangle is cut out of an 8 × 5 rectangle. What area remains?
34
4
Find the area of a triangle with base 10 and height 6.
30
5
Draw a 3 × 2 rectangle on squared paper and find its area with Pick's formula. What are M and N?
M = 10, N = 2, S = 5 + 2 − 1 = 6 = 3 · 2.