1
00:00:00,000 --> 00:00:02,252
A coordinate plane.

2
00:00:02,850 --> 00:00:04,790
Point 1 1.

3
00:00:05,383 --> 00:00:07,443
Point 6 1.

4
00:00:08,033 --> 00:00:10,189
Point 3 5.

5
00:00:10,783 --> 00:00:14,115
Connect the points to form a triangle.

6
00:00:15,283 --> 00:00:19,359
Area equals one half base times height.

7
00:00:20,050 --> 00:00:23,790
The base is 6 minus 1, which is 5.

8
00:00:25,750 --> 00:00:29,442
The height is 5 minus 1, which is 4.

9
00:00:33,050 --> 00:00:37,246
One half times 5 times 4 equals 10.

10
00:00:42,733 --> 00:00:44,673
Point 1 1.

11
00:00:45,266 --> 00:00:47,326
Point 6 1.

12
00:00:47,916 --> 00:00:50,000
Point 6 4.

13
00:00:50,600 --> 00:00:52,612
Point 1 4.

14
00:00:53,200 --> 00:00:56,556
Connect the points to form a rectangle.

15
00:01:00,000 --> 00:01:03,740
The base is 6 minus 1, which is 5.

16
00:01:05,700 --> 00:01:09,344
The height is 4 minus 1, which is 3.

17
00:01:11,400 --> 00:01:15,140
5 times 3 equals 15.

18
00:01:20,633 --> 00:01:22,573
Point 1 1.

19
00:01:23,166 --> 00:01:25,250
Point 5 1.

20
00:01:25,850 --> 00:01:27,958
Point 3 4.

21
00:01:28,550 --> 00:01:31,882
Connect the points to form a triangle.

22
00:01:34,450 --> 00:01:38,142
The base is 5 minus 1, which is 4.

23
00:01:40,150 --> 00:01:43,794
The height is 4 minus 1, which is 3.

24
00:01:47,450 --> 00:01:51,694
One half times 4 times 3 equals 6.

25
00:01:57,183 --> 00:01:59,123
Point 1 1.

26
00:01:59,716 --> 00:02:01,800
Point 5 1.

27
00:02:02,400 --> 00:02:04,532
Point 6 3.

28
00:02:05,116 --> 00:02:07,176
Point 2 3.

29
00:02:07,766 --> 00:02:11,338
Connect the points to form a parallelogram.

30
00:02:14,566 --> 00:02:18,258
The base is 5 minus 1, which is 4.

31
00:02:20,266 --> 00:02:23,982
The height is 3 minus 1, which is 2.

32
00:02:27,566 --> 00:02:30,946
4 times 2 equals 8.

33
00:02:36,433 --> 00:02:38,445
Point 2 1.

34
00:02:39,033 --> 00:02:41,093
Point 6 1.

35
00:02:41,683 --> 00:02:43,815
Point 4 5.

36
00:02:44,400 --> 00:02:47,732
Connect the points to form a triangle.

37
00:02:50,300 --> 00:02:53,992
The base is 6 minus 2, which is 4.

38
00:02:56,000 --> 00:02:59,692
The height is 5 minus 1, which is 4.

39
00:03:03,300 --> 00:03:07,472
One half times 4 times 4 equals 8.

40
00:03:12,966 --> 00:03:14,906
Point 1 1.

41
00:03:15,500 --> 00:03:17,560
Point 4 1.

42
00:03:18,150 --> 00:03:20,210
Point 4 4.

43
00:03:20,800 --> 00:03:22,812
Point 1 4.

44
00:03:23,400 --> 00:03:26,468
Connect the points to form a square.

45
00:03:30,200 --> 00:03:33,892
The base is 4 minus 1, which is 3.

46
00:03:35,900 --> 00:03:39,544
The height is 4 minus 1, which is 3.

47
00:03:41,600 --> 00:03:45,052
3 times 3 equals 9.