3 years ago

How do you find the perimeter in a triangle

1 answer:

dsp733 years ago

8 0

Add all three sides if they are given. If it is a right angled triangle you can also use Pythagoras’ theorem or trigonometry

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djyliett [7]

38 yard piece for each student and there are 16 students:

38*16=608

608 yards needed for your class

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3 years ago

Thepotemich [5.8K]

How many people are there?

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horrorfan [7]

Answer:

x ÷ a - b = c

x a-b both side

x = c(a-b)

x = ca - bc

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2 years ago

GenaCL600 [577]

Answer:

do u want them all answered

Step-by-step explanation:

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3 years ago

earnstyle [38]

The formula of a midpoint:

$M_{AB}\left(\dfrac{x_A+x_B}{2},\ \dfrac{y_A+y_B}{2}\right)$

We have:

$M(1.5,\ 1.5)\to x_M=1.5,\ y_M=1.5\\A(5,\ 7)\to x_A=5,\ y_A=7$

Substitute

$\dfrac{5+x_B}{2}=1.5\qquad|\cdot2\\\\5+x_B=3\qquad|-5\\\\x_B=-2\\\\\dfrac{7+y_B}{2}=1.5\qquad|\cdot2\\\\7+y_B=3\qquad|-7\\\\y_B=-4$

<h3>Answer: (-2, -4)</h3>

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3 years ago