Question

for the umbrella?
ana 50 cm.
A kite in the shape of a square with a diagonal 32 cm and an isosceles triangle of basi
8 cm and sides 6 cm each is to be made of three different shades as shown in
Fig. 12.17. How much paper of each shade has been used in
it?​

Answer 1

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Given:
Diagonal =32cm , Base=8cm , side=6cm

⇒Area of square

=
2
1
​
×(d)
2


=
2
1
​
×(32)
2
=512cm
2


⇒Area of shaded portion I= Area of shaded portion II

⇒
2
512
​
=256cm
2


∴ Area of paper required =256 cm
2


⇒For triangle III region

⇒S=
2
6+6+8
​
=10cm

⇒A=
s(s−a)(s−b)(s−c)
​


⇒Area =
10(10−6)(10−6)(10−8)
​
=
10×4×4×2
​
cm
2


⇒A=4×2
5
​
cm
2
=17.92 cm
2


Area of paper required for III triangle shade=17.92 cm
2

Answer 2

64 is the answer
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