SOLUTION: a triangular poster's base is two times as long as it's height. The poster has an area of 390 square inches. What is the height & base of the poster? Round answers to the nearest w
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-> SOLUTION: a triangular poster's base is two times as long as it's height. The poster has an area of 390 square inches. What is the height & base of the poster? Round answers to the nearest w
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Question 1061392: a triangular poster's base is two times as long as it's height. The poster has an area of 390 square inches. What is the height & base of the poster? Round answers to the nearest whole number. Answer by jorel555(1290) (Show Source):
You can put this solution on YOUR website! Let h be the triangle's height. Then it's base is 2h. So:
1/2 x h(2h)=390
h²=390
h=+/-√390=19.75
The height of the poster is 19.75", and its base is 35.50". ☺☺☺☺
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