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Masja [62]
2 years ago
8

Find the area of a triangle whose base is 10 mm, and its height is 15 mm.

Mathematics
1 answer:
hjlf2 years ago
5 0

Answer:

75mm²

Step-by-step explanation:

Area of a triangle

1/2 × base × height

= 1/2 × 10mm × 15mm

= 75mm²

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Answer:

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Step-by-step explanation:

1) First, place the given equation in slope-intercept form (y = mx +b format) to find its slope easier. Isolate the y:

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So, the equation of the line in slope-intercept form is y = -x + 14. When an equation is in slope-intercept form, the m, or the coefficient of the x-term, represents the slope. Thus, the slope for the given line would be -1.

2) Lines that are perpendicular have slopes that are opposite reciprocals of each other. We need to find the opposite reciprocal of -1, then.

To find the opposite reciprocal of a number, write the given number as a fraction first -- making -1 be written as   -\frac{1}{1} -- then switch the sign and flip the numerator and denominator. So, the opposite reciprocal of -1 is 1, and 1 is the slope of the perpendicular line.

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