A triangle has a base of 7 ft. and an altitude of 15 ft. Find its area to the nearest tenth.
Choose the best answer from the options below:
A 52.5 ft²
B 53.5 ft²
C 54.5 ft²
D 55.5 ft²
To find the area of a triangle, you can use the formula A = (1/2) * base * height, where A is the area, base is the length of the base, and height is the altitude of the triangle.
In this case, the base is 7 ft and the altitude is 15 ft. Plugging these values into the formula, we get:
A = (1/2) * 7 ft * 15 ft
= 52.5 ft²
So the area of the triangle is 52.5 ft².
Therefore, the correct answer is A) 52.5 ft².
To find the area of a triangle, you can use the formula:
Area = (base * height) / 2
In this case, the base of the triangle is given as 7 ft and the altitude (height) is given as 15 ft. Plugging these values into the formula:
Area = (7 ft * 15 ft) / 2
Area = 105 ft² / 2
Area ≈ 52.5 ft²
Therefore, the correct answer is A) 52.5 ft².
Calculate the area of a triangle by
Area = (base*height)/2
You will get an area that matches one of the answers.
If you don't, post how you calculated the area, and we will help you from there.
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We will, though, check YOUR answers.