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2 answers:
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Answer:
90
Step-by-step explanation:
Given: Measure of one side of equilateral triangle =
Measure of another side of equilateral triangle =
In equilateral triangle all three sides are equal in length.Therefore,
On substituting the value of x in side of equilateral triangle,
One side of equilateral triangle =
Perimeter of equilateral triangle = 3 ( length of one side) ........( given)
perimeter of equilateral triangle =
Answer:
Step-by-step explanation:
Let
x------> Lamar's collection of cards
The algebraic expression of the phrase "Lamar decreased his collection of cards by seven" is equal to subtract the number seven from Lamar's collection of cards
so