Simplify 20÷5+8^2×2-9
2 answers:
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<u>Answer-</u>
<em>The height of the traffic light is 21.8 feet.</em>
<u>Solution-</u>
As shown in figure, we can see the right triangle formed from the situation,
From the question,
BC = the distance walked by Andrew from the traffic light = 20 feet
Height of Andrew's eye = 5 feet
Height of the traffic light = AB + Height of Andrew's eye
From the properties of triangle,
Therefore, height of the traffic light = AB + Height of Andrew's eye = 16.8+5 = 21.8 feet
