Question

5 Find the perimeters of the triangles with the following dimensions.
(a) AB = 8 cm; BC = 6 cm; CA = 7 cm
RICH
(b) AB = 4 cm; BC = 8 cm; CA = 3 cm
(c) AB = 7 cm; BC = 5 cm; CA = 2 cm
(d) AB = 12 cm; BC = 11 cm; CA = 9 m 7 cm​

Answer 1

Answer:

a) 21cm

b) 15cm

c) 14cm

d) 9.3m

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Answer 2

Answer:

perimeter of a triangle is

AB+ BC+ CA

Step-by-step explanation:

a. 8cm+ 6cm+ 7cm = 21cm

b. 4cm+ 8cm+ 3cm= 15cm

c. 7cm+ 5cm+ 2cm= 14cm

d.9m 7cm into cm = 970cm

12cm+ 11cm+ 970cm= 993cm

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