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Marysya12 [62]
3 years ago
11

Work out the length of the perimeter.

Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
3 0
Try this option:
According to property such triangle
1. area=0.5*a*b, where a and b - the sides of angle 90°.
Using this equation: 180=0.5*40*b, ⇒ b=9.
2. c²=a²+b², ⇒c=√(9²+40²)=41 - the third side of the triangle;
3. Perimeter=a+b+c=9+40+41=90 cm.

answer: 90 cm.
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Answer:

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Step-by-step explanation:

so we know it's base times height right

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Answer:

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Step-by-step explanation:

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