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1. Find the area of a triangle whose sides are 6cm, 8cm and 10cm
2. A triangle whose sides are the ratio of 3 : 5 : 4. has a perimeter of 60cm determine its area.

Sagot :

Answer:

1. A=24 cm²

2. the answer is on the picture

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Solution

1.(Correct option is A)

●The sides are 6cm,8cm,10cm

6 + 8 + 10 24

S=_________ = __ = 12

2 2

2.3x + 4x + 5x = 60

12x = 60

x = 5

3x = 15 cm

4x = 20 cm

5x = 25 cm

15^2+20^2=25^2

Triangle is right angled.

Area

=basexheight nt / 2

=20×15-2

=150cm^2

Hope it helps..

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