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# What is the area of a right angle triangle of the picture? I am trying to figure out how many square feet this is if it is a 110' long?

Make the hypotenuse 15"

### 9 Answers

- PuzzlingLv 76 months ago
The area of a right triangle is simply half the product of the legs.

Your legs are 9" and 12" (and the corrected hypotenuse is 15")

A = ½ × 9 × 12

A = 9 × 6

A = 54

Answer:

54 sq. inches

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- JLv 76 months ago
Since the Pythagorean property 9^2 + 12^2 = 12^2 fails it is NOT a right triangle.

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- davidLv 76 months ago
1. The triangle as drawn is impossible ... the hypotenuse cannot equal one of the sides .. the hypotenuse is always the longest side of any right triangle.

2. If the length if 110 and the height is 12, then the area is (1/2)*(110)*(12) = 660

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- sepiaLv 76 months ago
The right triangle shown has an area of 54 square inches.

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- DavidLv 76 months ago
The dimensions in the sketch are wrong but if the triangle has a length of 110 feet and a height of 12 feet then its area is 0.5*110*12 = 660 square feet

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- Anonymous6 months ago
It's exactly 55 grid squares.

- timbear006 months agoReport
so 55"

so than the area of the entire 110' would be what? - Login to reply the answers

- David B.Lv 76 months ago
Based on the picture of the hypotenuse cannot be 12" as well. It would be 15".

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- Markus ImhofLv 76 months ago
The measurements(?) don't add up. If one of the cathetes is 12" and the other 9", the hypotenuse must be 15". Or otherwise, if two sides of a triangle have the same length, it's not a triangle - at least not in euclidian geometry.

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Ok, if 12" and 9" are correct - just imagine that the right angle is one corner of a rectangle, and you'll see that the area would be 1/2 * 9" * 12" = 54 square inches, half the area of that 9"*12" rectangle.

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BTW Thanks for your help Markus

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