Finding The Area Of Right Triangles With A Grid Worksheet With Answer Key

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Finding the Area of Right Triangles with a Grid
Name:
Find the area of each triangle in blocks (b).
A n s w e r s
The area of a right triangle is
In this example, the surrounding
2
15 b
half the area of the rectangle
rectangle would have an area of
1.
2
that would surround it.
15 blocks (15 b
).
2
20 b
2.
2
24 b
3.
3
3
2
36 b
4.
5
5
2
Half of 15 is 7.5
17.5 b
5.
This right triangle has an area of
2
7.5 b
.
2
24 b
6.
2
9 b
7.
1)
2)
3)
2
36 b
8.
2
13.5 b
9.
4)
5)
6)
7)
8)
9)
1-9
89 78 67 56 44 33 22 11 0
Math
10

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