Question

The area of a triangle is 124 square units. What would its new area be if its base was half as long, and the height was three times as long?

Answer 1

A = (b*h)/2

124 = (b*h)/2

(1/2)*124 = ((b/2)*h)/2 ... replace b with b/2...this means we must multiply the left side by 1/2


62 = ((b/2)*h)/2


3*62 = ((b/2)*(3*h))/2 ... multiply both sides by 3 (to go from h to 3h)


186 = ((b/2)*(3*h))/2


So the new area is 186 square units

Answer 2

:D Thank you for explaining! :D

Answer 3

yw