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Home/ Questions/Q 9139
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Yesa
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Yesa
Asked: March 23, 20212021-03-23T09:50:09+00:00 2021-03-23T09:50:09+00:00In: Class 7 Maths

Find the missing values:

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Find the missing values:

NCERT Solutions for Class 7 Mathematics Chapter 11
Important NCERT Questions
Class vii Math Chapter 11 Perimeter and Area Exercise 11.2
NCERT Books for Session 2022-2023
CBSE Board
Questions No: 4

2020-2021cbsechapter 11class7mathematicsncertperimeter and area
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      Caitri
      2021-03-23T10:38:46+00:00Added an answer on March 23, 2021 at 10:38 am

      We know that the area of triangle = 1/2 x base x height
      In first row, base = 15 cm and area = 87 cm²
      ∴ 87 = 1/2 x 15 x height
      ⇒ height = 87×2/15 11.6 cm
      In second row, height = 31.4 mm and area = 1256 mm²
      ∴ 1256 = 1/2 x base x 31.4
      ⇒ base = 1256 x 2/31.4 = 80 mm
      In third row, base = 22 cm and area = 170.5 cm²
      ∴ 170.5 = 1/2 x 22 x height
      ⇒ height = 170.5 x 2/22 = 15.5 cm

      Class 7 Maths Chapter 11 Exercise 11.2

      for more answers vist to:
      https://www.tiwariacademy.com/ncert-solutions/class-7/maths/chapter-11/

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