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pentagon [3]
3 years ago
11

Find the length of the third side of triangle if its midline measures 45cm​

Mathematics
2 answers:
sergejj [24]3 years ago
8 0

Answer:

90 cm

Step-by-step explanation:

The midline of a triangle is half the length of the 3rd side, then

3rd side = 2 × 45 cm = 90 cm

azamat3 years ago
3 0

Answer:

20 cm is the length of third side of triangle

Step-by-step explanation:

Length of 1st side = a

Length of 2nd side = 10cm = b

Length of 3rd side = 15cm = c

So,

Perimeter of triangle = 45 cm

a+b+c = 45cm

a + 10 + 15 = 45 cm

.'. a = 45-25 cm

= 20 cm

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