Question

Great white sharks have triangular teeth with a height that is 1 centimeter longer than the base. if the area of one tooth is 15 square centimeters find its base and height

Answer 1

A = (H * B) / 2.......2A = H * B
A = 15
H = B + 1

2(15) = H * B
30 = B(B + 1)
30 = B^2 + B
B^2 + B - 30 = 0
(B + 6)(B - 5) = 0

B + 6 = 0
B = -6.....not this one, it cant be negative

B - 5 = 0
B = 5 <==== base is 5 cm

H = B + 1
H = 5 + 1
H = 6 <=== height is 6 cm