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pav-90 [236]
3 years ago
10

The height of a triangle is 5 centimeters greater than the base. The area of the triangle is 375 square centimeters. Find the le

ngth of the base and the height of the triangle
Mathematics
1 answer:
stealth61 [152]3 years ago
6 0

Using the area formula for a triangle, you can solve for the length of the base and height. Since A=(base * height)/2, we can rearrange to solve for the length of the base or the height. I will be solving for the length first.

Using the formula given, you can rearrange it to find that the base equals

B=2A/H

Remembering that the height is 5 cm greater than the base, we can say H=B+5

plugging that value in for H, we get that

B=2A/(B+5). We know A equals 375, so we can also add that in

B=2(375)/(B+5)

solving for B will give us a polynomial, by multiplying both sides by B+5 to get

B^2+5B=750. We can bring it all to one side to get

B^2+5B-750=0. solving the polynomial, we get that B equals

(B-25)(B+30) or B=25,-30

Since it doesn't make sense to have a negative length, we can assume it is the 25 value that equals B. Finally we can plug this value into the original triangle area formula to find that

A=(B*H)/2

2A/B=H

2(375)/25=H=30

Base=25cm

Height=30cm

This also fits the criteria of the Height being 5 centimeters greater than tha base value

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