Gillian read 3135 words in 19 minutes. Let w represent the words read each minute. If Gillian read the same number of words each
1 answer:
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Answer:
Area of given triangle is 939.15cm² and smallest altitude is 30.8cm
<h3>Solution:</h3>We are given three sides of a triangle, Let the sides be :
- ( a ) = 35 cm
- ( b ) = 54 cm
- ( c ) = 61 cm
We can find the area of the triangle with its three sides using Heron's Formula
- <u>Heron's </u><u>Formula</u>
Heron's formula was founded by hero of Alexandria, for finding the area of triangle in terms of the length of its sides. Heron's formula can be written as:
where ( s ) :
Therefore, for the given triangle first we will calculate ( s )
Now, Area of triangle will be:
Also, we have to find the smallest altitude, and the smallest altitude will be on the longest side. So,
Answer:
A) JK and LM will be parallel to each other.
Step-by-step explanation:
On reflection on line the x co-ordinate changes with y co-ordinate and y co-ordinate changes with x co-ordinate
Points on line EF
On reflection of this line on the new points we get for line JK are
Points on line GH
On reflection on y=x line the new points we get for line LM are
Slope of line JK
Slope of line LM
For two line to be parallel, their slopes will be same.
Since slopes of lines JK and LM are same therefore we can say that these are parallel to each other.