i) As shown in fig. above three congruent circle with center
A, B and C and radius 5cm each, touch each other externally
in points D, E, and F. a) What is the perimeter of triangle ABC ?
b) What is the length of side DE of triangle DEF ?
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Answered by
10
Refer the attachment friend....
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Answered by
5
Answer:
30
Step-by-step explanation:
Side after angle abc is equal to distance between the centre a and b is equal to 10 cm
the length of side triangle ABC is equal to the distance between the centre of circle is same same because of same radii
Perimeter of equilateral triangle
= 3 ×sides
=3 x 10
= 30
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