Question

An umbrella is made by stiching 10 triangular pieces of cloth. each measuring 50 cm. 20 cm. and 50 cm . The area of the cloth used is .. * 2 points​

Answer 1

Answer:

Solution

Here a=50,b=50,c=20

The umbrella's figure consists of 5 triangle pieces

One triangle piece's Area =

s(s−a)(s−b)(s−c)

⇒2S=50+50+20

⇒S=

2

120

=60 cm

⇒A=

60(10)(10)(40)

=200

6

cm

2

Total Area =5×200

6

=1000

6

cm

2

Answer 2

10+50+50+20+2= 132

EXPLANATION

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