Question

hi friends please solve this problem​

Answer 1

Answer:

36:24:30

Step-by-step explanation:

perimeter=90

6+4+5=15

90/15=6

6*6=36

6*4=24

6*5=30

=36:24:30

Answer 2

Given:

Ratio of the sides of the triangle = 6 : 4 : 5

Perimeter of the triangle = 90 cm

To Find:

The area of the triangle

Solution:

Find the lengths of the 3 sides of the triangle:

Total parts = 6 + 4 + 5

Total parts = 15

15 parts = 90 cm

1 part = 90 ÷ 15 = 6 cm

6 parts = 6 x 6 = 36 cm

4 parts = 6 x 4 = 24 cm

5 parts = 6 x 5 = 30 cm

Find the area of the triangle:

area = √s(s - a)(s - b)(s - c)

s = Perimeter ÷ 2

s = 90 ÷ 2

s = 45

area = √45(45 - 36)(45 - 24)(45 - 30)

area = √(45(9)(21)(15)

area = √127575

area = 357.18 cm²

Answer: Area of the triangle is  357.18 cm²