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sineoko [7]
3 years ago
7

An isosceles triangle has a perimeter that measures 20 centimeters and a base that measures 7 centimeters. What is the length of

each side?
6 cm
6.5 cm
7 cm
13 cm
Mathematics
2 answers:
Salsk061 [2.6K]3 years ago
8 0

Answer:

The length of each side of the triangle is 6.5 cm

Step-by-step explanation:

Perimeter of a triangle (p) = 2a + b

where a = length of side

          b = base of the triangle

        p = 20 cm

        b = 7 cm

p = 2a +b

20 = 2a + 7

2a = 20 - 7

2a = 13

a = 13 /2

a = 6.5

a = 6.5 cm

since it is an isosceles triangle, the two sides are equal = 6.5 cm

lana [24]3 years ago
4 0

Answer:

6.5

Step-by-step explanation:

as both sides need to be equal 20-7/2

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