Use triangles to find the sum of the interior angle measures of the polygon. What's the answer?
2 answers:
Answer: 180*5=900
Step-by-step explanation:
1) Start from the middle triangle and draw 2 lines connecting the edges to the bottom 2 angles. This should result in the crown splitting into 3 sections.
2) Go to the triangles on each side and connect them to the middle triangle. It should result in the crown having 5 triangles.
3) Multiply the 5 triangles by 180 (the angle sum of a triangle) to get 900.
Crown after all the lines are drawn:
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Answer:
My sister will swing the total distance = 40 feet
Step-by-step explanation:
On the first swing my sister travels a distance of 8 feet.
In every successive swing she travels 80% of the distance of the previous distance.
So the sequence formed by the distance traveled in every swing will be a geometric sequence.
First term of the sequence 'a' = 8 feet
common ratio 'r' = 0.80
Since this sequence is an infinite geometric sequence,
Sum of this sequence = [Since r < 1]
=
=
= 40 feet
Therefore, my sister will cover the total distance = 40 feet