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balu736 [363]
3 years ago
12

The perimeter of an equilateral triangle is 3 (+ 5). The perimeter of a rectangle is 2 (2x - 3) + 2(2). If the perimeters of the

two figures are equal, then what is the value of r?​
Mathematics
1 answer:
TiliK225 [7]3 years ago
5 0

Answer:

3.25

Step-by-step explanation:

Perimeter of triangle = 3(5) = 15 cm

Perimeter of rectangle = 2(2x - 3 + 4)

Perimeter = 2(2x + 1)

Perimeter = 4x + 2

4x + 2 = 15

4x = 15 - 2

4x = 13

x = 13/4

x = 3.25

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AlexFokin [52]

Answer:

x = 5

Step-by-step explanation:

Since both triangles are similar hence;

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Given theta

m<CAB = 50degrees

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Substitute the given angles

50 = 10x

Swap

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Divide both sides by 10

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Hence the value of x is 5

7 0
3 years ago
There are three marbles in a bag. One is red and two are black. What is the probability of picking a black marble first, putting
Maru [420]

Answer:

well for me I think

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6 0
3 years ago
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8 0
3 years ago
What is Add and Simply 7/4 + 5/6 =
Pani-rosa [81]
Simple, first find a common denominator, 24.

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5 0
3 years ago
PLEASE HELP ME !!!!!!!!!!!!!!!!
natima [27]
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8 0
3 years ago
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