21.3k views
2 votes
the height of a triangle is 7 yards greater than the base. the area of the triangle is 184 square yards. find the length of the base and the height of the triangle.

User Eerriicc
by
8.1k points

1 Answer

2 votes

Final answer:

To find the base and height of the triangle, a quadratic equation is formed from the area formula and solved to yield the base of 16 yards and height of 23 yards.

Step-by-step explanation:

To solve the problem, let's denote the base of the triangle as 'b' yards. According to the problem, the height is 7 yards greater than the base; therefore, the height can be represented as 'b + 7' yards. The area of a triangle is calculated using the formula 1/2 × base × height. Given that the area of the triangle is 184 square yards, we can set up an equation: 1/2 × b × (b + 7) = 184.

Multiplying both sides of the equation by 2 to eliminate the fraction yields: b × (b + 7) = 368. Expanding the equation gives us a quadratic equation: b² + 7b - 368 = 0. Factoring this quadratic equation, we get: (b + 23)(b - 16) = 0. This gives us two possible solutions for the base, b = -23 or b = 16. Since the base cannot be negative, we discard b = -23, leaving us with the base b = 16 yards.

Now, to find the height, we substitute the base back into the height expression: Height = b + 7 = 16 yards + 7 yards = 23 yards. Therefore, the base of the triangle is 16 yards and the height is 23 yards.

User Deroude
by
7.9k points