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And also explain it along with the steps.....
Ques No.-12 i) , ii) , iii)
If you know any one of them please answer!!
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msrajput:
The first figure is rectangle or not
Answers
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In 1
Area of rectangle abcd = b × h
= 60 × 30
= 1800cm^2
area of 4 triangle as they have same base and height = 1/2 × 15 × 30 × 4
= 900cm^2
Area of shaded = 1800 - 900
= 900cm^2
In 3
Area of rectangle abcd = 80 × 50
= 4000cm^2
Area of large triangle = 1/2 × 65 × 50
= 1625cm^2
Area of small triangle = 1/2 × 25 × 30
= 375 cm^2
Area of both triangle = 1625+375
=2000 cm^2
Area of shaded portion = 4000 -2000
= 2000cm^2
Area of rectangle abcd = b × h
= 60 × 30
= 1800cm^2
area of 4 triangle as they have same base and height = 1/2 × 15 × 30 × 4
= 900cm^2
Area of shaded = 1800 - 900
= 900cm^2
In 3
Area of rectangle abcd = 80 × 50
= 4000cm^2
Area of large triangle = 1/2 × 65 × 50
= 1625cm^2
Area of small triangle = 1/2 × 25 × 30
= 375 cm^2
Area of both triangle = 1625+375
=2000 cm^2
Area of shaded portion = 4000 -2000
= 2000cm^2
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