



 
Hi Ann. Let h = the height of the triangle and b = the length of the base and A A = (1/2) b h Now look at your problem: "The height of a triangle is 4cm less than the base. " That means h + 4 = b. "The area is 198cm^{2}." That means A = 198. "Find the height" is asking you to calculate h. So from the relationship A = (1/2) b h, we should try to replace all the A = (1/2) b h Try simplifying this and then solve for h and you are done! Hope this helps,  


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