Answer:
Step-by-step explanation:
An isosceles ∆ has 2 equal sides. The perimeter of a ∆ is the sum of all its sides.
Given that the perimeter of the triangle above is "at least 137 ft", this means the sum of all its sides is equal to or greater than 137 ft.
Thus, using inequality, this can be represented as:
Solve for x
Add like terms
Subtract 17 from both sides
Divide both sides by 8
Answer:
Parallelogram = 2 pairs of parallel sides and opposite angles are equal
Triangle BEA and triangle DFC are equivalent by side angle side
Therefore, angle DCF is equivalent to angle BAE
Angles FEB and DFE are right angles due to them being supplementary angles with angles BEA and DFC, respectively.
This means triangles BEC and DFA are equivalent.
This means angles FCB and EAD are equivalent, which means angles BCD and DAB are equivalent.
This also means angles ABC and ADC are equivalent.
Opposite angles equivalent = parallelogram
Answer:
0
Step-by-step explanation:
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Answer:
Slope= 7/5
Step-by-step explanation:
The slope of a line is determined as a ratio of the change in y to the change in x.
Slope=Δy/Δx
Δy=y₂-y₁
Δx=x₂-x₁
Therefore we can use the the x and y coordinates from the points given, (-3,0) and (2,7) to calculate the slope.
m= (7-0)/(2-⁻3)
Slope= 7/5
When a negative number is subtracted from a number it the operation sign changes to addition.