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Find the perimeter of the triangle

Find the perimeter of the triangle-example-1
User Zvoase
by
7.5k points

2 Answers

7 votes
We can find the area of the big triangle, and subtract it from the small 4 x 2 triangle.

bh/2
3*8/2
12

bh/2
2*4/4
4

12 - 8
4 unit²

To find the perimeter:
a² + b² = c²
9 + 64 = c²
73 = c²
√73 = c

√73 + 3 + 8 + 2 + 4
√73 + 17


Hope this helps!
User Robbannn
by
8.0k points
3 votes
I think the answer is 29.
Good luck in your math homework:)



User Ryan Durkin
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8.6k points